SPURIOUS

adj. false, counterfeit, sham, fake, fraudulent, bogus, mock, imitation, simulated, unauthentic, ungenuine, forged, feigned, pretended, deceitful, meretricious, contrived, factitious, artificial, ersatz, synthetic, Colloq pseudo, phoney or US also phony His brother was jailed for peddling spurious Egyptian burial artefacts to archaeologists