Adjective counterfeit
Synonyms: bum, dishonest, dissembling, fake, false, fraudulent, phony, pretended, pretentious, pseudo, sham, simulated, unprincipled
Antonyms: genuine, original, real
Noun person who pretends to be an expert
Synonyms: actor, bum, bunco artist, charlatan, cheat, con artist, counterfeit, counterfeiter, fake, faker, flimflammer, four-flusher, fraud, hoser, humbug, impostor, mountebank, phony, playactor, pretender, pseudo, put-on, quacksalver, sham, shammer, shark, sharp, simulator, slicker, whip