counterfeit
Americanadjective
noun
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an imitation intended to be passed off fraudulently or deceptively as genuine; forgery.
- Synonyms:
- sham, falsification
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Archaic. a copy.
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Archaic. a close likeness; portrait.
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Obsolete. impostor; pretender.
verb (used with object)
verb (used without object)
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to make counterfeits, as of money.
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to feign; dissemble.
adjective
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made in imitation of something genuine with the intent to deceive or defraud; forged
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simulated; sham
counterfeit affection
noun
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an imitation designed to deceive or defraud
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archaic an impostor; cheat
verb
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(tr) to make a fraudulent imitation of
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(intr) to make counterfeits
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to feign; simulate
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(tr) to imitate; copy
Synonym Usage
See false.
Other Word Forms
Derived Forms
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counterfeiternoun
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counterfeitnessnoun
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noncounterfeitadjective
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uncounterfeitedadjective
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counterfeitlyadverb
Inflected Forms
Nouns
Participles
Conjugated Forms
Present
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counterfeitsimple
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counterfeitssimple
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have counterfeitedperfect
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has counterfeitedperfect
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am counterfeitingprogressive
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are counterfeitingprogressive
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is counterfeitingprogressive
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have been counterfeitingperfect progressive
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has been counterfeitingperfect progressive
Past
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counterfeitedsimple
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had counterfeitedperfect
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was counterfeitingprogressive
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were counterfeitingprogressive
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had been counterfeitingperfect progressive
Future
Etymology
Origin of counterfeit
First recorded in 1250–1300; (adjective) Middle English countrefet “false, forged,” from Anglo-French cuntrefet, Old French contrefait, contrefet, past participle of contrefaire, contrefere “to copy, imitate,” equivalent to conter- counter- + fere “to make, do,” ultimately from Latin facere ( see fact); (verb) Middle English countrefeten, verbal derivative of countrefet
Explanation
A counterfeit is a fake or a forgery. If you painted an uncanny copy of the "Mona Lisa" and tried to pass it off as the original, you'd have a counterfeit on your hands. An exact imitation of anything — a work of art, a ten dollar bill — is a counterfeit, and the act of creating the fake copy is the verb to counterfeit. You can also describe the forgery using the adjective form of counterfeit: a counterfeit Rolex watch. In Old French, the word contre, "counter or against", together with the word faire, "to make," joined together to mean "to make in imitation," which led to our counterfeit.
Vocabulary lists containing counterfeit
Against All Odds: Contra and Counter
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Fake It 'Til You Make It: Synonyms for "False"
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The Adventures of Huckleberry Finn
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Counterfeit and contaminated products could be crushed by a forklift or incinerated.
From The Wall Street Journal • Dec. 26, 2025
Counterfeit coins remain a threat to global currencies, with malicious actors flooding markets with fakes.
From Science Daily • May 14, 2024
In its statement, Roche said: "Avastin is not approved for any use in the eye. Counterfeit medicines pose a health risk to patients because their content may be ineffective and contain harmful ingredients."
From Reuters • Sep. 25, 2023
Jamie has also discussed his mental health struggles when performing with his band, Counterfeit, especially on their song It Gets Better.
From BBC • Jul. 28, 2022
Yet even as the themes of Counterfeit Paradise spread to the worlds of natural science and political activism, Meggers’s ideas exerted ever- diminishing influence in archaeology itself.
From "1491" by Charles C. Mann
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.