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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viviparous
C2
/vɪˈvɪpərəs/
producing live young that developed inside the parent's body rather than laying eggs
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hymenopterous
C2
/ˌhaɪməˈnɑːptərəs/
belonging or relating to the insect order Hymenoptera, which includes bees, wasps, ants, and sawflies
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irrefragable
C2
/ɪˈrɛfrəɡəbəl/
impossible to refute, dispute, or break down by argument
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quinary
C2
/ˈkwaɪnəɹi/
consisting of five parts or arranged in groups of five
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atheistical
C2
/ˌeɪθiˈɪstɪkəl/
Of or relating to atheism; atheistic.
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monistic
C2
/məˈnɪstɪk/
relating to monism, the view that reality is ultimately one or consists of a single kind of substance
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despondence
C2
/dɪˈspɑndəns/
a state of deep dejection, discouragement, and loss of hope
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despiser
C2
/dɪˈspaɪzɚ/
a person who regards someone or something with contempt
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parturient
C2
/pɑrˈtʊriənt/
In labour, about to give birth, or having recently given birth.
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stultify
C2
/ˈstʌltɪfaɪ/
To make someone or something dull and lifeless, especially by limiting freedom or imagination.
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carousal
C2
/kəˈraʊzəl/
noisy, festive, and often drunken revelry, or an occasion marked by such revelry
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exceptionable
C2
/ɪkˈsep.ʃən.ə.bəl/
open to objection or criticism; offensive, unacceptable, or otherwise liable to disapproval (formal)
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disembody
C2
/ˌdɪs.ɪmˈbɑː.di/
to separate a spirit, voice, idea, or consciousness from a physical body
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polyandrous
C2
/ˌpɑːˌliːˈændrəs/
having numerous stamens, especially stamens inserted on the receptacle of a flower
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abhorrently
C2
/æbˈhɔɹ.ənt.li/
In a way that causes strong disgust or hatred.
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syllogistic
C2
/ˌsɪləˈdʒɪstɪk/
relating to syllogisms or reasoning through syllogisms
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whaleman
C2
/ˈweɪl.mən/
historical: a man employed in whaling, especially a crew member aboard a whaling ship; loosely, any whaler
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secularly
C2
In a way not connected with religion.
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tessellated
C2
/ˈtɛsəˌleɪtɪd/
covered or decorated with small tiles or pieces fitted together in a mosaic pattern
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parthenogenetic
C2
/ˌpɑːrθənoʊdʒəˈnɛtɪk/
produced by or relating to reproduction in which an organism develops from an unfertilized egg
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practicability
C2
/ˌpræk.tɪ.kəˈbɪl.ə.t̬i/
the quality of being feasible, workable, or capable of being put into practice
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undoubting
C2
/ʌnˈdaʊtɪŋ/
feeling or showing no doubt; completely confident or unquestioning
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innervate
C2
/ɪˈnɝˌveɪt/
stimulate to action
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repartition
C2
/ˌriː.pɑːrˈtɪʃ.ən/
a new or different distribution or apportionment of something
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triennial
C2
/traɪˈɛniəl/
occurring every three years or lasting for three years
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sophistical
C2
/səˈfɪs.tɪ.kəl/
apparently clever or plausible but actually fallacious or misleading
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pewee
C2
/ˈpiːwiː/
a small North American flycatcher of the genus Contopus, named for its call
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malversation
C2
/ˌmæl.vɚˈseɪ.ʃən/
corrupt or dishonest conduct in a public office, trust, or administrative role
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coexistent
C2
/ˌkoʊɪɡˈzɪstənt/
existing at the same time or together with something else
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unamenable
C2
/ˌʌn.əˈmiː.nə.bəl/
unwilling to accept a suggestion, request, or influence
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supernal
C2
/suˈpɝnəl/
literary: belonging to heaven, the sky, or a spiritual realm
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emendation
C2
/ˌiːmɛnˈdeɪʃən/
a correction by emending
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disgustful
C2
/dɪsˈɡʌstfəl/
causing strong disgust; disgusting or repellent
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ammoniacal
C2
/aməˈnʌɪəkəl/
pertaining to or containing or similar to ammonia
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telescopically
C2
By means of a telescope.
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supposable
C2
/səˈpoʊzəbəl/
capable of being supposed, imagined, or assumed
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supplicatory
C2
/ˈsʌplɪkəˌtɔri/
expressing an earnest or humble plea
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endwise
C2
/ˈɛndˌwaɪz/
with the end forward or toward the observer
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ungrudging
C2
/ʌnˈɡrʌdʒ.ɪŋ/
given, done, or felt willingly and wholeheartedly, without reluctance or resentment
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cottar
C2
/ˈkɑːtər/
Scottish history: a peasant or farm laborer who occupied a cottage and sometimes a small plot, usually in return for labor services
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pneumogastric
C2
/ˌnuːmoʊˈɡæstrɪk/
dated: relating to the vagus nerve
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mineralize
C2
/ˈmɪnɝəˌlaɪz/
to convert a substance into mineral or inorganic form, as in fossilization, bone formation, or carbon storage
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tantivy
C2
/tænˈtɪvi/
archaic: a rapid gallop, headlong ride, or swift rushing movement
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papilionaceous
C2
/pəˌpɪliəˈneɪʃəs/
having a butterfly-shaped corolla, as in many flowers of the pea family
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approximator
C2
/əˈprɑksəˌmeɪtɚ/
a person, method, or device that produces an approximate value or representation
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conchologist
C2
/kɑŋˈkɑlədʒɪst/
a person who studies or collects mollusc shells, especially for scientific classification
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diluvian
C2
/daɪˈluvɪən/
relating to, caused by, or resembling a great flood or deluge
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interpenetration
C2
/ˌɪntərˌpɛnəˈtreɪʃən/
mutual penetration or overlapping presence within the same space or system
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stultifyingly
C2
In a way that is so dull it numbs the mind.
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triturate
C2
/ˈtrɪtʃəˌreɪt/
to crush, rub, or grind a substance thoroughly into fine particles or powder
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ferruginous
C2
/fəˈruːdʒənəs/
containing iron or an iron compound
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indolently
C2
In a lazy, idle way, avoiding effort.
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prelapsarian
C2
/ˌpriː.læpˈser.i.ən/
relating to the state of humanity before the biblical Fall
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polydactylism
C2
/ˌpɑːliˈdæktəlɪzəm/
the congenital condition of having more than the usual number of fingers or toes
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dedicatory
C2
/ˈdɛdəkəˌtɔri/
serving as or relating to a dedication
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nonmathematical
C2
/ˌnɑːnˌmæθəˈmætɪkəl/
not involving, expressed in, or based on mathematics
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pettish
C2
/ˈpɛtɪʃ/
easily irritated, impatient, or bad-tempered, especially over something trivial
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hymeneal
C2
/ˌhaɪməˈniəl/
relating to marriage or a wedding; nuptial, chiefly in literary use
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contrariety
C2
/kɒntɹəˈɹʌɪəti/
Opposition or contrariness; cross-purposes, marked contrast.
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maladministration
C2
/ˌmælədˌmɪnəˈstreɪʃən/
faulty, improper, or inefficient management, especially by a public authority
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hautboy
C2
/ˈhoʊˌbɔɪ/
archaic: an oboe or an early form of that treble double-reed woodwind instrument
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canonry
C2
/ˈkænənri/
the office, benefice, or prebend held by a canon of a cathedral or collegiate church
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harpooneer
C2
/ˌhɑːr.puːˈnɪr/
historical whaling: a specialist who throws or fires the harpoon, typically stationed in the bow of a whaleboat
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copartnership
C2
/ˌkoʊˈpɑɹtnɚˌʃɪp/
the state or right of being a copartner in a joint enterprise
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gustation
C2
/ɡʌˈsteɪʃən/
the sense or faculty of taste
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reduplicate
C2
/ɹɪˈduːplɪˌkeɪt/
to repeat, copy, or double something
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circumscription
C2
/ˌsɝkəmˈskrɪpʃən/
the act of drawing a boundary around something or limiting its extent
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unhistorical
C2
/ˌʌnhɪˈstɔrɪkəl/
not based on, supported by, or consistent with historical evidence or fact
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bewhiskered
C2
/bɪˈwɪskərd/
having hair on the cheeks and chin
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ephor
C2
/ˈɛf.ɚ/
one of five annually elected senior magistrates in ancient Sparta, empowered to supervise the kings and enforce civic law
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engraftment
C2
/ɪnˈɡræft.mənt/
medicine: the successful incorporation and growth of transplanted cells or tissue in a recipient
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recrudescence
C2
/ˌɹiːkɹuˈdɛsəns/
the renewed outbreak or return of something undesirable after a period of decline or inactivity
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veery
C2
/ˈvɪəɹi/
a tawny North American woodland thrush noted for its descending, flute-like song
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annuitant
C2
the recipient of an annuity
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besieger
C2
/bɪˈsiː.dʒɚ/
a person or force that surrounds and attacks a fortified place in order to make it surrender
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coachmaker
C2
/ˈkoʊtʃˌmeɪkɚ/
historical: a craftsperson or business that builds horse-drawn coaches and carriages
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diabolism
C2
/daɪˈæ.bəˌlɪ.zəm/
belief in, worship of, or ritual dealings with devils
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pinnate
C2
/pɪnˈneɪt/
having leaflets, lobes, veins, or branches arranged in two rows along a central axis
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ruminative
C2
/ˈruməˌneɪdɪv/
Thoughtful and given to deep reflection.
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foliate
C2
/ˈfoʊ.li.ət/
having, resembling, or arranged in thin leaflike layers
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contumacy
C2
/ˈkɑːntʊməsi/
stubborn resistance to authority; deliberate and obstinate disobedience
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garrulity
C2
/ɡəˈɹuːləti/
the quality of talking excessively, especially about unimportant things
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opulently
C2
In a way that shows great wealth and luxury.
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monadology
C2
/ˌmɑnəˈdɑlədʒi/
a metaphysical doctrine or study of monads, especially Leibniz's theory that reality consists of simple immaterial substances
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invalidism
C2
/ˈɪnvəlɪˌdɪzəm/
a chronic condition of illness, frailty, or incapacity that makes someone an invalid
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liliaceous
C2
/ˌlɪliˈeɪʃəs/
botany: belonging or relating to the lily family Liliaceae
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melanism
C2
/ˈmɛlənɪzəm/
an unusually high amount of dark melanin pigment in an animal or person, making the skin, fur, feathers, or eyes darker than usual
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weedless
C2
/ˈwiːdləs/
free from weeds
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unsensuous
C2
/ʌnˈsɛnʃuəs/
not apprehended through the senses; lacking sensory imagery or sensuous form
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versify
C2
/ˈvɝːsəˌfaɪ/
to compose poetry or write in verse
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uncalculating
C2
/ˌʌnˈkæl.kjə.leɪ.tɪŋ/
not motivated by strategic self-interest or careful calculation; spontaneous and unscheming
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inerrancy
C2
/ɪˈnɛɹənsi/
(Christianity) exemption from error
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schoolman
C2
/ˈskuːl.mən/
historical: a medieval scholar or teacher, especially one associated with scholastic philosophy or theology
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abscission
C2
/æbˈsɪ.ʃn̩/
The act or process of cutting off.
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unextended
C2
/ˌʌnɪkˈstɛndɪd/
lacking spatial extension; not occupying measurable space
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indefeasibility
C2
/ɪn.dɪˌfiː.zɪˈbɪl.ə.ti/
the quality of being impossible to annul, invalidate, or defeat, especially as a legal right or title
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