noun
deception, counterfeit, sham, copy, cheat, imitation, charlatan, quack, impostor, fraud, make-believe, pretense, fabrication, forgery, imposition, humbug, sleight, trick, hoax, swindle, stratagem, dummy, phony*, faker*, gyp*, spoof*, plant*, put-on*, scam*, flimflam*, goldbrick*.
Antonyms fact*, original, reality. See syn. study at quack.quack.