mock, forged, sham, phony, bogus, fake, phoney, assumed, pretended, spurious, more...

authentic, genuine, real

fake, forgery, knock-off, duplicate, copy, more...

mere, poor, good, perfect, excellent, clever, cheap, satanic, miserable, fair, exact

imitation; fake,   fake coin,   phony coin,   poor imitation,   fake copy,   bad copy,   fabricate illegally,   forger's production,   poor copy,   phony or fake