adj. 1 forged, fake, fraudulent, imitation, bogus, spurious, Colloq phoney or US also phony The bank reported the counterfeit money to the police 2 make-believe, sham, pretended, pretend, feigned, insincere, fake, faked, false, artificial, meretricious, pseudo, factitious, synthetic, unreal, simulated You were warned about his counterfeit sincerity
n. 3 fake, imitation, forgery, reproduction, Colloq phoney or US also phony This is the original deed, that one is a counterfeit
v. 4 forge, copy, reproduce, falsify, imitate; Slang hang paper He made a living counterfeiting passports 5 feign, pretend, simulate, put on, fake The suspects have shown signs of wealth that are difficult to counterfeit