Word Formation & Derivatives
Prefixes, suffixes, compounds, inflections, and derived word families.
7226 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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testimonial
C2
/tɛstɪˈmoʊni.əl/
A written or spoken statement praising someone's worth, character, or a product.
M
S
collider
C2
/kəˈlaɪdɚ/
A machine that speeds up particles and makes two beams of them crash into each other for research.
M
S
ephemeral
C2
/ɛˈfɛ.mə.ɹəl/
Lasting for only a short time.
M
S
condensation
C2
/kənˌɖɛnˌse.ʃən/
The process by which a gas, especially water vapor, turns into a liquid.
M
S
sporadic
C2
/spɝˈædɪk/
recurring in scattered and irregular or unpredictable instances
M
S
slither
C2
/ˈslɪð.ɚ/
To move smoothly along the ground with a twisting, side-to-side motion, like a snake.
M
S
philanthropy
C2
/fɪˈlæn.θɹə.pi/
The act of giving money and help to good causes to improve people's lives.
M
S
inscrutable
C2
/ˌɪnˈskɹuːtəbl̩/
Impossible to understand or read; mysterious.
M
S
despondent
C2
/dɪˈspɑːndənt/
without or almost without hope
M
S
remorseful
C2
/ɹɪˈmɔː(ɹ)sfʊl/
Feeling deep regret and guilt for something you have done wrong.
M
S
elation
C2
/ɪˈleɪʃən/
A feeling of great happiness and excitement
M
S
meteorological
C2
/ˌmitiəɹəˈlɑd͡ʒɪkl̩/
Relating to the weather or the study of the weather.
M
S
divination
C2
/ˌdɪvɪˈneɪʃən/
The practice of trying to predict the future or discover hidden things by supernatural means.
M
S
virginal
C2
/ˈvɜː(ɹ)d͡ʒɪnəl/
Pure and untouched; like a virgin.
M
S
confrontational
C2
/ˌkɒnfɹənˈteɪʃənˈəl/
Likely to cause an argument or fight; aggressive and hostile.
M
S
digress
C2
/daɪˈɡɹɛs/
lose clarity or turn aside especially from the main subject of attention or course of argument in writing, thinking, or speaking
M
S
inexperience
C2
/ˌɪnɪkˈspɪriːəns/
lack of experience and the knowledge and understanding derived from experience
M
S
stipulate
C2
/ˈstɪpjuˌleɪt/
To state clearly that something must be done, as part of an agreement or rule.
M
S
scholarly
C2
/ˈskɑːlɝli/
Connected with serious academic study and research
M
S
melodious
C2
/məˈloʊdi.əs/
Pleasant to listen to; having a beautiful tune.
M
S
strangeness
C2
/ˈstreɪndʒnəs/
the quality of being alien or not native
M
S
affiliate
C2
/əˈfɪliːˌeɪt/
a subsidiary or subordinate organization that is affiliated with another organization
M
S
allegory
C2
/ˈæləˌɡɔɹi/
A story whose characters and events stand for a deeper meaning, often a moral or political one.
M
S
avian
C2
/ˈeɪvi.ən/
Relating to or typical of birds.
M
S
palatable
C2
/ˈpælətəbəl/
Pleasant to taste; good to eat.
M
S
topography
C2
/təˈpɑɡɹəfi/
The shape and physical features of an area of land, such as hills and valleys.
M
S
ornate
C2
/ɔɹˈneɪt/
Decorated with a lot of complicated detail, sometimes too much.
M
S
materialism
C2
/məˈtɪɹiəlɪzəm/
A strong focus on owning things and having money rather than on spiritual or moral values.
M
S
assimilation
C2
/əˌsɪməˈleɪʃən/
The process of a group taking on the customs and attitudes of a larger culture.
M
S
malleable
C2
/ˈmæl.iː.ə.bəl/
Easily shaped or changed; flexible.
M
S
monastic
C2
/məˈnæstɪk/
Relating to monks, nuns, or the life of a monastery.
M
S
unequivocally
C2
/ˌʌnɪˈkwɪvək(ə)li/
In a way that leaves no doubt; clearly and firmly.
M
S
finicky
C2
/ˈfɪnɪki/
exacting, especially about details
M
S
habitation
C2
/ˌhæb.ɪˈtæɪ.ʃən/
The state of people living in a place.
M
S
dampen
C2
/ˈdæmpən/
To make a feeling or activity weaker or less lively.
M
S
ostensibly
C2
/ɑˈstɛn.sə.bli/
According to what is stated or appears to be true, though the real situation may be different.
M
S
toady
C2
/ˈtoʊ.di/
a person who tries to please someone in order to gain a personal advantage
M
S
loiter
C2
/ˈlɔɪtɚ/
To stand or wait around a place with no clear purpose.
M
S
tangent
C2
/ˈtæn.d͡ʒənt/
a ratio of the opposite to the adjacent side of a right-angled triangle
M
S
pervasive
C2
/pɚˈveɪ.sɪv/
Present or spreading everywhere; affecting every part of something.
M
S
preoccupation
C2
/ˌpɹiɑkjʊˈpeɪʃən/
The state of being so absorbed in a thought that you notice little else.
M
S
zoology
C2
/zoʊˈɑləd͡ʒi/
The branch of biology that studies animals.
M
S
acrobatics
C2
/ˌækrəˈbætɪks/
Difficult and impressive physical movements such as jumps, flips, and balances.
M
S
buoyancy
C2
/ˈbɔɪənsi/
irrepressible liveliness and good spirit
M
S
intrinsic
C2
/ɪnˈtɹɪn.zɪk/
Belonging naturally to something as part of its basic nature.
M
S
attuned
C2
/əˈtuːnd/
Aware of and able to respond well to something, such as people's feelings or a situation.
M
S
listless
C2
/ˈlɪstlɪs/
lacking zest or vivacity
M
S
ferment
C2
/fɚˈmɛnt/
a state of agitation or turbulent change or development
M
S
wistful
C2
/ˈwɪstfəl/
Sad and thoughtful, especially when remembering something or longing for it.
M
S
drudgery
C2
/ˈdrʌdʒɝi/
Hard, boring, and tiring work that requires little skill.
M
S
triplicate
C2
/ˈtɹɪp.lɪ.kət/
to reproduce threefold
M
S
dismember
C2
/ˌdɪsˈmɛmbə(ɹ)/
separate the limbs from the body
M
S
abhorrent
C2
/æbˈhɔɹ.ənt/
Causing strong feelings of disgust and hatred; utterly unacceptable.
M
S
proximal
C2
/ˈprɑːksəməl/
Located nearest to the point of attachment, origin, or the body's centre.
M
S
philanthropic
C2
/ˌfɪl.ənˈθɹɑ.pɪk/
Generous in giving money and help to good causes.
M
S
maliciously
C2
/məˈlɪʃɪsli/
In a way that is intended to harm or hurt others.
M
S
torrential
C2
/tɔˈɹɛn.t͡ʃəl/
Of rain, falling very heavily.
M
S
indivisible
C2
/ˌɪndɪˈvɪzɪbəl/
impossible of undergoing division
M
S
elasticity
C2
/ɪ.læsˈtɪs.ɪ.ti/
The ability of a material to return to its original shape after being stretched or squeezed.
M
S
revulsion
C2
/ɹɪˈvʌlʃən/
A strong feeling of disgust or loathing.
M
S
counterproductive
C2
/ˌkaʊntəpɹəˈdʌktɪv/
Having the opposite effect to the one you intended; doing more harm than good.
M
S
painstakingly
C2
/ˈpeɪnˌsteɪkɪŋli/
With great care and effort; very slowly and carefully.
M
S
fallacy
C2
/ˈfɛl.ə.si/
A mistaken belief based on faulty reasoning.
M
S
surrealist
C2
Relating to surrealism, or having a strange, dreamlike quality.
M
S
instigator
C2
/ˈɪnstəˌɡeɪtɚ/
someone who deliberately foments trouble
M
S
vindication
C2
/vɪndɪˈkeɪʃən/
Proof that someone was right or free from blame.
M
S
emphatic
C2
/ɛmˈfætɪk/
forceful and definite in expression or action
M
S
acrobatic
C2
/ˌækɹəˈbætɪk/
Involving skilful, agile movements like those of an acrobat.
M
S
stringent
C2
/ˈstɹɪn.d͡ʒənt/
Strict, severe, and demanding close attention to rules or standards.
M
S
burgeoning
C2
/ˈbɝ.d͡ʒə.nɪŋ/
Growing or developing quickly.
M
S
irrevocably
C2
/ɪˈɹɛ.və.kə.bli/
In a way that cannot be changed, reversed, or undone.
M
S
foray
C2
/ˈfɔɹ.eɪ/
an initial attempt (especially outside your usual areas of competence)
M
S
dissension
C2
/dɪˈsɛnʃən/
Strong disagreement that causes division within a group.
M
S
measurable
C2
/ˈmeʒəɹəbəl/
of distinguished importance
M
S
minster
C2
/ˈmɪnstɚ/
A large or important church, especially a cathedral.
M
S
attrition
C2
/əˈtɹɪʃən/
A gradual reduction in number, especially of staff who leave and are not replaced.
M
S
buccaneer
C2
/ˌbʌkəˈnɪɚ/
A pirate, especially one who attacked Spanish ships in the Caribbean in the 1600s.
M
S
stipulation
C2
/ˌstɪp.jəˈleɪ.ʃən/
A condition that must be met as part of an agreement.
M
S
scholastic
C2
/skɵˈlasʈɪk/
of or relating to schools
M
S
subsidize
C2
/ˈsʌbsɪˌdaɪz/
To help pay for something by giving money, usually so its cost stays low.
M
S
jarring
C2
[d͡ʒɑːrɪŋ]
Unpleasantly shocking or out of place; clashing.
M
S
unadulterated
C2
/ˌənəˈdʌltɝˌeɪtɪd/
Pure; not mixed with anything else.
M
S
disparaging
C2
/dɪˈspɛrɪdʒɪŋ/
Showing a low opinion of someone or something; insulting or critical.
M
S
sandwiched
C2
/ˈsænˌdwɪtʃt/
Squeezed or fitted tightly between two other things.
M
S
contractual
C2
/kənˈtræktʃuːəl/
Relating to or required by a binding legal agreement.
M
S
paradoxical
C2
/ˌpɛɹəˈdɑːksɪkəl/
Seeming to contradict itself, yet possibly true.
M
S
individualism
C2
/ˌɪndɪvɪˈduːəˌlɪzəm/
The belief that the freedom and self-reliance of each person matter more than the group or the state.
M
S
surrealism
C2
/sɝˈiːlɪzəm/
An early 20th-century art and literary movement that used dreamlike, fantastic images to express the unconscious mind.
M
S
dowdy
C2
/ˈdaʊdi/
lacking in smartness or taste
M
S
spurious
C2
/ˈspjʊɹ.i.əs/
False or fake; not genuine or authentic.
M
S
asexual
C2
/eɪˈsɛk.ʃu.əl/
not having or involving sex
M
S
opulent
C2
/ˈɒpjʊlənt/
Showing great wealth and luxury; richly grand.
M
S
proliferation
C2
/pɹəˌlɪf.əˈɹæɪ.ʃən/
A rapid increase in the number or spread of something.
M
S
additive
C2
/ˈæd.ɪ.tɪv/
A substance added to food, fuel, or another product to give it certain qualities.
M
S
parochial
C2
/pəˈɹoʊki.əl/
Narrow in outlook; concerned only with local matters and ignoring the wider world.
M
S
recitation
C2
/ˌɹɛsəˈteɪʃən/
The act of saying a poem, speech, or passage aloud, usually from memory.
M
S
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