Synonyms of counterfeit in English:

counterfeit


See US English definition of counterfeit

See UK English definition of counterfeit

See Spanish definition of falsificación

adjective

1‘they were charged with supplying counterfeit cassettes’

SYNONYMS
fake, faked, copied, forged, feigned, simulated, sham, spurious, bogus, imitation, substitute, dummy, ersatz
informal knock-off, pirate, pirated, phoney, pseud, pseudo
British informal, dated cod
ANTONYMS

genuine


noun

1‘the shopkeeper knew the notes to be counterfeits’

SYNONYMS
fake, forgery, copy, reproduction, replica, imitation, likeness, lookalike, mock-up, dummy, substitute, fraud, sham
informal phoney, pirate, knock-off, rip-off, put-on, dupe
ANTONYMS

original


verb

1‘my signature is extremely hard to counterfeit’

SYNONYMS
fake, forge, copy, reproduce, replicate, imitate, simulate, feign, falsify, sham
informal pirate