Counterfeit, simulated, sham. Of things, esp. of metal, money, jewels: Counterfeit, spurious. Of a document: Forged.

Of poor quality or little worth. Of currency (originally coinage): debased, counterfeit, false. Also figurative and in figurative contexts. See also…

Of material things or substances: Made in imitation of something else, ‘imitation’, not genuine; made of inferior or base materials; spurious, sham…

Of coins or banknotes: counterfeit, forged.

Made in fraudulent imitation of something genuine; counterfeit, false, spurious.

figurative. Applied to banks in the western United States which, before the passing of the National Bank Act of 1863, fraudulently issued notes with…

Counterfeit, spurious, fictitious, sham: ‘originally applied to counterfeit coin’ (Webster).

Counterfeit, forged.

Imitated, simulated, feigned, pretended, etc.: see the verb.