noun
one who affects virtues, qualities, or attitudes he does not have
don't be a hypocrite --if you don't approve, say so
Synonyms: dissembler, dissimulator, lip server, pharisee, Tartuffe, whited sepulcher
Related Word: pietist; actor, attitudinizer, bluffer, charlatan, faker, four-flusher, fraud, humbug, impostor, masquerader, phony, poser, poseur, pretender, quack, sham