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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orientalist
C2
/ˌɔːriˈentəlɪst/
historical or academic: a scholar of languages, literatures, histories, or cultures once grouped in Western scholarship as the Orient
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allusive
C2
/əˈluː.sɪv/
characterized by indirect references
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transuranic
C2
/ˌtrænz.jʊˈræn.ɪk/
of a chemical element, having an atomic number greater than uranium's atomic number of 92
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harum-scarum
C2
/ˌhɛrəmˈskɛrəm/
reckless, disorderly, and lacking careful thought
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actuate
C2
/ˈæk.tʃuˌeɪt/
engineering: to cause a machine or mechanism to operate or move
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unreligious
C2
/ˌʌnrɪˈlɪdʒəs/
not believing in, practicing, or showing an interest in religion
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fireless
C2
/ˈfaɪɚləs/
having no fire burning, or operating without an open flame
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intelligibility
C2
/ɪnˌtɛlədʒəˈbɪləti/
the quality or degree of being understandable or capable of rational explanation
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anatomize
C2
/əˈnætəmaɪz/
to analyze a subject, argument, or character in minute detail
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exigency
C2
/ˈɛɡzəd͡ʒənsi/
a pressing or urgent situation
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suavity
C2
/ˈswɑvəti/
smooth, polite, and urbane agreeableness of manner
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invariant
C2
/ˌɪnˈvɛriːənt/
Unaffected by a specified operation, especially by a transformation.
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uncelebrated
C2
/ʌnˈsɛl.əˌbreɪ.t̬ɪd/
not widely praised, honored, or famous
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concretion
C2
/kənˈkriːʃən/
a hard, often rounded mineral mass formed by material accumulating within sediment or sedimentary rock
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premonitory
C2
/prəˈmɑnəˌtɔri/
serving as an advance warning or indication of something that is about to happen
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antipathetic
C2
/ˌæntɪpəˈθɛtɪk/
feeling, showing, or causing strong dislike or repugnance
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cultish
C2
Resembling a cult, especially in showing extreme or unquestioning devotion.
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potentiometer
C2
/pəˌtɛn(t)ʃiˈɑmɪtəɹ/
a measuring instrument for measuring direct current electromotive forces
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nasolabial
C2
/ˌneɪzoʊˈleɪbiəl/
Relating to the nose and lips.
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sectary
C2
/ˈsɛktəri/
a member or adherent of a particular religious sect, school of thought, or party; now rare
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sullenly
C2
/ˈsʌlənli/
In a sullen manner.
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dolmen
C2
/ˈdoʊlmən/
a prehistoric megalithic tomb formed from a large horizontal capstone supported by two or more upright stones, often originally covered by a mound
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crupper
C2
/ˈkrʌpər/
a strap or loop passing under a horse's tail to prevent a saddle or harness from sliding forward
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meretricious
C2
/ˌmɛɹɪˈtɹɪʃəs/
like or relating to a prostitute
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libertinism
C2
/ˈlɪbərtɪˌnɪzəm/
a way of life marked by self-indulgence, sexual freedom, and rejection of conventional moral restraints
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stringency
C2
/ˈstrɪndʒənsi/
the quality of being strict, exacting, or rigorously enforced
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remunerate
C2
/rɪˈmjunəˌreɪt/
to pay or otherwise reward someone for work, services, or a loss
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effluence
C2
/ˈɛfluəns/
the process of flowing or issuing outward
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angularity
C2
The quality of having sharp angles or corners.
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shoemaking
C2
/ˈʃuːˌmeɪkɪŋ/
the craft, trade, or process of making shoes
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deliberative
C2
/dɪˈlɪbɝˌeɪtɪv/
involved in or characterized by deliberation and discussion and examination
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mundanity
C2
/mʌnˈdænɪti/
The quality of being ordinary, dull, or unremarkable.
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dissembler
C2
/dɪˈsɛmblɚ/
a person who conceals true feelings or intentions by pretending to have different ones
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delusive
C2
/dɪˈluːsɪv/
giving a false or misleading impression; tending to deceive
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ossify
C2
/ˈɑ.sə.faɪ/
To become (or cause to become) inflexible and rigid in habits or opinions.
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kinesthetic
C2
/ˌkɪnəsˈθɛtɪk/
relating to the sense of bodily position, muscular movement, and effort
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execration
C2
/ˌɛksəˈkreɪʃən/
a curse or forceful expression of hatred and condemnation
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lenticular
C2
/lɛnˈtɪkjəlɚ/
shaped like a lens, especially convex on both sides
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calumniate
C2
/kəˈlʌmni.eɪt/
To make hurtful untrue comments about.
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unsuspicious
C2
/ˌʌn.səˈspɪʃ.əs/
not suspecting danger, deception, or another person's motives; trusting or unaware
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withy
C2
/ˈwɪð.i/
a tough, flexible willow twig or branch, especially one used for binding or weaving
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hairiness
C2
/ˈhɛriːnəs/
The characteristic of being hairy.
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extemporize
C2
/ɪkˈstɛmpəˌraɪz/
perform without preparation
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shipmaster
C2
/ˈʃɪpˌmæs.tɚ/
The master of a ship; a captain; a commander
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insensibility
C2
/ɪnˌsen.səˈbɪl.ə.ti/
lack of physical sensation or awareness; unconsciousness
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phylactery
C2
/fəˈlæktəri/
either of two small leather cases containing Torah passages, traditionally worn during weekday morning prayer; a tefilla
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calcareous
C2
/kælˈkɛəɹi.əs/
Resembling, containing, or composed of calcium carbonate or limestone; chalky.
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ruction
C2
/ˈrʌkʃən/
informal: a noisy quarrel, fight, or angry disturbance
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moiety
C2
/ˈmɔɪəti/
a part or share, especially one of two roughly equal parts
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unperceived
C2
/ˌʌnpərˈsivd/
not perceived, noticed, or consciously registered
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marquetry
C2
/ˈmɑːɹ.kə.tɹi/
the decorative craft of fitting thin pieces of differently colored wood, shell, metal, or other veneer into a surface to form a design
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echolocate
C2
To find the position of objects by sending out sounds and listening for the echoes.
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pilferer
C2
/ˈpɪlfəɹə(ɹ)/
a person who steals small items or small amounts
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numeration
C2
/ˌnuːməˈreɪʃən/
the act or process of counting or assigning numbers
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cracksman
C2
/ˈkræksmən/
dated or literary: a burglar, especially one skilled at breaking open safes
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unproved
C2
/ʌnˈpruːvd/
not demonstrated, established, or confirmed by proof or sufficient evidence
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raftsman
C2
/ˈræftsmən/
dated: a person who operates, travels on, or works aboard a raft
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permeation
C2
/ˌpɝː.miˈeɪ.ʃən/
the process of spreading through and becoming present throughout a substance, place, group, or system
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antisemitic
C2
/ˌæn.ti.səˈmɪt.ɪk/
hostile, prejudiced, or discriminatory toward Jewish people
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swingeing
C2
/ˈswɪndʒɪŋ/
chiefly British: extremely severe, harsh, or damaging
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euphony
C2
/ˈjuːfəni/
A pronunciation of letters and syllables which is pleasing to the ear.
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theosophist
C2
/θiˈɑːsəfɪst/
a follower or advocate of theosophy, especially a member of the modern Theosophical movement
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faddy
C2
/ˈfæd.i/
having very particular, changeable, or hard-to-satisfy tastes and preferences
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subornation
C2
/ˌsʌbɔrˈneɪʃən/
the act of inducing someone to commit perjury or another unlawful act
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odoriferous
C2
/ˌoʊdəˈɹɪfəɹəs/
having a natural fragrance
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sophism
C2
/ˈsɑfɪzəm/
a clever-seeming but invalid argument, often used deliberately to deceive
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annal
C2
/ˈænəl/
a record of an event or of the events of one year in a historical chronicle, now most often used in the plural annals
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syndic
C2
/ˈsɪndɪk/
an official or agent appointed to manage the affairs of a corporation, university, municipality, or similar body
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refutable
C2
/rɪˈfjuː.t̬ə.bəl/
capable of being disproved or shown to be false
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costermonger
C2
/ˈkɑːstərˌmʌŋɡər/
a street vendor who sells fruit and vegetables from a cart, barrow, or stall
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cognate
C2
/ˈkɑɡn(e)ɪt/
related in origin, nature, or character
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hermaphroditism
C2
/hɚˈmæfɹədaɪˌtɪzəm/
in biology, the condition of having both male and female reproductive organs, either simultaneously or at different life stages
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ephemerality
C2
The quality of lasting for only a very short time.
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illimitable
C2
/ɪˈlɪmɪtəbəl/
incapable of being limited or bounded; measureless
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tendentious
C2
/tɛnˈdɛnʃəs/
having or marked by a strong tendency especially a controversial one
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putrescent
C2
/pjuˈtrɛsənt/
undergoing putrefaction; becoming rotten or putrid
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supernatant
C2
/ˌsuː.pɚˈneɪ.tənt/
lying or floating above a denser liquid, sediment, or precipitate
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gerrymander
C2
/ˈd͡ʒɛɹ.iˌmæn.dəɹ/
an act of gerrymandering, or dividing a voting area so as to give your own party an unfair advantage
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fustian
C2
/ˈfʌs.t͡ʃən/
inflated, pompous, or pretentious speech or writing
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panegyric
C2
/ˌpænəˈdʒɪrɪk/
a formal speech or piece of writing that offers elaborate praise
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chieftainship
C2
/ˈtʃiːftənˌʃɪp/
the position, authority, or period of rule of a chieftain
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unmediated
C2
Direct, without anything coming in between.
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opprobrious
C2
/əˈproʊbriəs/
expressing scornful reproach or abusive criticism
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hybridize
C2
/ˈhaɪbrəˌdaɪz/
to cross genetically different organisms, varieties, or species, or to produce hybrid offspring
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improvident
C2
/ɪmˈpɹɒvɪdənt/
failing to provide for the future; reckless
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dolichocephalic
C2
/ˌdɑːlɪkoʊsəˈfælɪk/
having a head or skull that is relatively long from front to back compared with its width
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outrider
C2
/ˈaʊtˌraɪ.dɚ/
a mounted escort who rides ahead of or beside a procession, vehicle, or body of travelers
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exclamatory
C2
/ɪkˈsklæməˌtɔɹi/
expressed as, containing, or resembling an exclamation
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penurious
C2
/pəˈnjʊə.ɹi.əs/
Miserly; excessively cheap.
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unnervingly
C2
/ˈʌnˈnɜːvɪŋlɪ/
In a way that makes someone feel nervous or uneasy.
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millenary
C2
/ˈmɪləˌnɛri/
a period of one thousand years; a millennium
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heaver
C2
/ˈhiːvə(ɹ)/
a worker who lifts or carries heavy freight, especially at a dock
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dolorous
C2
/ˈdɒləɹəs/
Solemnly or ponderously sad.
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aphelion
C2
/əˈfiːliən/
the point in the orbit of a planet, comet, or other body at which it is farthest from the Sun
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corvée
C2
/kɔːrˈveɪ/
historical: unpaid labor that a feudal tenant was required to perform for a lord, often in place of rent or tax
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impenitent
C2
/ɪmˈpɛnət(ə)nt/
Not penitent; specifically (Christianity), not repenting of one's sins; unrepentant.
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