imposter, impostor, pretender, fake, faker, fraud, sham, shammer, pseudo, pseud, role player (adj)

a person who makes deceitful pretenses

pseudo (adj)

(often used in combination) not genuine but having the appearance of

"a pseudo esthete"; "pseudoclassic"

pseudo (Noun)

An intellectually pretentious person; a pseudointellectual.

pseudo (Noun)

A poseur; false, fake.

pseudo (Noun)

pseudo-city code

pseudo (Adjective)

Being other than what is apparent, a sham.

pseudo (Adjective)

Insincere.

pseudo (Adjective)

Spurious.