n. (informal)
25B6; adjective a phoney address : BOGUS, false, fake, fraudulent, spurious; counterfeit, forged, feigned; pseudo, imitation, sham, man-made, mock, ersatz, synthetic, artificial; simulated, pretended, contrived, affected, insincere; informal pretend, put-on; Brit. informal cod.
authentic.
25B6; noun
he's nothing but a phoney : IMPOSTOR, sham, fake, fraud, charlatan; informal con artist.
the diamond's a phoney : FAKE, imitation, counterfeit, forgery.