Word Formation & Derivatives
Prefixes, suffixes, compounds, inflections, and derived word families.
11746 words
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Some words in this topic are A2–C2 — part of Pro. A1 words are always free.
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dimensionable
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/dɪˈmɛnʃənəbəl/
capable of being measured, assigned dimensions, or described in dimensional terms
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interplanetarian
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/ˌɪntərˌplænəˈtɛriən/
relating to travel, communication, or events between planets; interplanetary
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cheerless
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/ˈtʃɪɹləs/
gloomy and dreary, lacking joy or comfort
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desolate
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/ˈdɛsələt/
deserted, bleak, and devoid of comfort or inhabitants
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aggrandize
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/əˈɡrændaɪz/
to increase the power, wealth, or reputation of someone or something
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aberrant
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/æˈbɛɹənt/
departing from an accepted standard or normal type
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airy
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/ˈɛɹi/
spacious and well-ventilated; light or insubstantial
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celestial
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/səˈlɛstʃəl/
relating to the sky or heavens, or to heaven in a divine sense
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atrabiliary
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/ˌætrəˈbɪliˌɛɹi/
melancholic or ill-tempered; pertaining to black bile
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atrabilious
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/ˌætrəˈbɪliəs/
melancholy, gloomy, or bad-tempered
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arrant
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/ˈæɹənt/
utter and complete, used to emphasize something bad
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demonic
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/dɪˈmɑnɪk/
of or like a demon; fiercely energetic or evil
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allowable
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/əˈlaʊəbəl/
permissible within set rules or limits
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blissful
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/ˈblɪsfəl/
full of or expressing perfect happiness
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dispassionate
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/dɪsˈpæʃənət/
not influenced by strong emotion; calm and impartial
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hereafter
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/hɪɹˈæftɚ/
from now on or after this; the life after death
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beatific
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/ˌbiəˈtɪfɪk/
showing or imparting supreme blessedness or serene happiness
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congruent
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/ˈkɑŋɡruənt/
in agreement or harmony; identical in form (geometry)
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fearful
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/ˈfɪɹfəl/
feeling or causing fear; dreadful
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authorization
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/ˌɔθɚrɪˈzeɪʃən/
official permission or sanction to do something
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bewray
C2+
/bɪˈreɪ/
to reveal or betray, especially unintentionally (archaic)
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chapfallen
C2+
/ˈtʃæpˌfɔlən/
dejected or dispirited, with the lower jaw drooping
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chopfallen
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/ˈtʃɑpˌfɔlən/
crestfallen and downcast, with the jaw hanging low
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condemnation
C2+
/ˌkɑndɛmˈneɪʃən/
the expression of strong disapproval or a formal sentence
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consummate
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/ˈkɑnsəmət/
showing supreme skill; to complete or perfect
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crestfallen
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/ˈkrɛstˌfɔlən/
sad and disappointed after a defeat or letdown
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exhaustive
C2+
/ɪɡˈzɔstɪv/
thorough and complete, covering all possibilities
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illation
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/ɪˈleɪʃən/
the act of drawing an inference, or the conclusion so drawn
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admonish
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/ədˈmɑnɪʃ/
to warn or reprove someone firmly but gently
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aggravate
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/ˈæɡrəˌveɪt/
to make a problem worse, or to annoy someone
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agreeably
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/əˈɡriəbli/
in a pleasant or willing manner
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awaken
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/əˈweɪkən/
to wake from sleep or to rouse a feeling or awareness
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becomingly
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/bɪˈkʌmɪŋli/
in a manner that is attractive or fitting
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beggarly
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/ˈbɛɡɚli/
meanly poor or contemptibly small in amount
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categorically
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/ˌkætəˈɡɔɹɪkli/
in an absolute and unqualified manner
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comfortless
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/ˈkʌmfɚtləs/
without comfort, consolation, or ease
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conformable
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/kənˈfɔɹməbəl/
corresponding in form or character; compliant
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contemptible
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/kənˈtɛmptəbəl/
deserving scorn or disdain; despicable
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darken
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/ˈdɑɹkən/
to make or become dark or gloomy
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defective
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/dɪˈfɛktɪv/
having a fault or imperfection; not working properly
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dejected
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/dɪˈdʒɛktɪd/
sad and dispirited; low in spirits
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demean
C2+
/dɪˈmin/
to lower in dignity or status; to debase
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depress
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/dɪˈprɛs/
to make sad and dispirited, or to press down
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exceedingly
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/ɪkˈsidɪŋli/
to a very great extent; extremely
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forbidding
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/fɚˈbɪdɪŋ/
unfriendly or threatening in appearance; grim
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forlornness
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/fɚˈlɔɹnnəs/
the state of being abandoned, lonely, and miserable
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ignorable
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/ɪɡˈnɔɹəbəl/
able to be disregarded or left unnoticed
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sober
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/ˈsoʊbɚ/
not drunk; serious, solemn, or restrained
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agitate
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/ˈædʒəˌteɪt/
to stir up or disturb; to campaign vigorously
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anomalous
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/əˈnɑmələs/
deviating from what is standard, normal, or expected
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antediluvial
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/ˌæntɪdɪˈluviəl/
belonging to the period before the biblical flood; extremely ancient
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ardent
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/ˈɑrdnt/
intensely enthusiastic or passionate
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assent
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/əˈsɛnt/
agreement or approval; to express agreement
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atomy
C2+
/ˈætəmi/
a tiny particle or diminutive being; an atom or mote
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authoritarian
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/əˌθɔrɪˈtɛriən/
favouring strict obedience to authority over personal freedom
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booky
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/ˈbʊki/
fond of books or studious; bookish in manner
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cipher
C2+
/ˈsaɪfər/
a secret code; a zero; a nonentity; to encode or do arithmetic
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collected
C2+
/kəˈlɛktɪd/
calm and composed in manner; self-possessed
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corny
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/ˈkɔrni/
trite, mawkishly sentimental, or unsophisticatedly humorous
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cunning
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/ˈkʌnɪŋ/
skilled in deception or ingenuity; craftiness
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dejection
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/dɪˈdʒɛkʃən/
a state of low spirits or melancholy
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despondency
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/dɪˈspɑndənsi/
a state of deep dejection and loss of hope
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dormant
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/ˈdɔrmənt/
temporarily inactive or in a state of suspended development
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enigmatic
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/ˌɛnɪɡˈmætɪk/
mysterious and difficult to interpret or understand
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ergotism
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/ˈɜrɡəˌtɪzəm/
poisoning caused by eating fungus-infected grain, causing convulsions or gangrene
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estimable
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/ˈɛstɪməbəl/
worthy of great respect or esteem
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eulogize
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/ˈjuləˌdʒaɪz/
to praise highly, especially in a formal speech or writing
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frightful
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/ˈfraɪtfəl/
causing fear or horror; dreadful or extreme
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grievous
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/ˈɡrivəs/
causing great suffering, harm, or sorrow; very serious
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inactive
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/ɪnˈæktɪv/
not active, working, or in operation
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incessantly
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/ɪnˈsɛsəntli/
without interruption; continuously
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insignificant
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/ˌɪnsɪɡˈnɪfɪkənt/
too small or unimportant to be worth consideration
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middling
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/ˈmɪdlɪŋ/
of medium quality, size, or rank; mediocre
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reckless
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/ˈrɛkləs/
acting without thought for danger or consequences
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resistant
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/rɪˈzɪstənt/
able to withstand or opposing the effect of something
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anachronistic
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/əˌnækrəˈnɪstɪk/
belonging to a period other than the one portrayed; out of its time
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annihilate
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/əˈnaɪəˌleɪt/
to destroy completely or reduce to nothing
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archaic
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/ɑrˈkeɪɪk/
belonging to an earlier period; old-fashioned or no longer in use
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baleful
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/ˈbeɪlfəl/
menacing or threatening harm; full of malign influence
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barbarous
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/ˈbɑrbərəs/
savagely cruel; uncivilized or coarse
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bemoan
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/bɪˈmoʊn/
to express grief, regret, or displeasure over something
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blitheness
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/ˈblaɪðnəs/
carefree cheerfulness or lighthearted indifference
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busted
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/ˈbʌstɪd/
broken, ruined, or caught in wrongdoing
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categorical
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/ˌkætəˈɡɔrɪkəl/
unconditional and absolute; admitting no exception
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catholic
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/ˈkæθəlɪk/
broad in sympathies, tastes, or interests; universal
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cursory
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/ˈkɜrsəri/
hasty and superficial, lacking thoroughness
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daring
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/ˈdɛrɪŋ/
boldly adventurous; willingness to take risks
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decrement
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/ˈdɛkrəmənt/
a reduction or decrease in amount; to reduce by steps
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disagreeable
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/ˌdɪsəˈɡriəbəl/
unpleasant or bad-tempered
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discrepant
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/dɪˈskrɛpənt/
differing or inconsistent; not in agreement
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excessively
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/ɪkˈsɛsɪvli/
to a degree greater than what is normal or proper
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extravagant
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/ɪkˈstrævəɡənt/
lacking restraint in spending or excess; immoderate
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happening
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/ˈhæpənɪŋ/
an event or occurrence; currently fashionable or exciting
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propriety
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/prəˈpraɪɪti/
conformity to accepted standards of behaviour or morals
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singly
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/ˈsɪŋɡli/
one at a time; individually or separately
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speedy
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/ˈspidi/
done or moving with great speed; prompt
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