hypocrite

n. insincere person, sanctimonious person

For the death metal band, see Hypocrisy (band). Hypocrisy is the act of condemning or calling for the condemnation of another person when the critic is guilty of the act for which he demands that the accused be condemned. Though hypocrisy is frequently invoked as an accusation in debates, a few theorists have studied the utility of hypocrisy, and in some cases have suggested that the conflicts manifested as hypocrisy are a necessary or even beneficial part of human behavior and society.
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Noun
1. a person who professes beliefs and opinions that he does not hold
(synonym) dissembler, phony, phoney, pretender
(hypernym) deceiver, cheat, cheater, trickster, beguiler, slicker
(hyponym) smoothie, smoothy, sweet talker, charmer

adj. double-tongued, hypocrite; two faced, double-minded, insincere

n. hypocrite, double-faced person

(n.)
One who plays a part; especially, one who, for the purpose of winning approbation of favor, puts on a fair outside seeming; one who feigns to be other and better than he is; a false pretender to virtue or piety; one who simulates virtue or piety.