not real or genuine; fake; counterfeit

a phony diamond.

false or deceiving; not truthful; concocted

a phony explanation.

insincere or deceitful; affected or pretentious

a phony sales representative.

something that is phony; a counterfeit or fake.

an insincere, pretentious, or deceitful person

He thought my friends were a bunch of phonies.

to falsify; counterfeit; fabricate (often fol. by up )

to phony up a document.

noun

ambidexterity , artificiality , disingenuousness , pharisaism , sanctimoniousness , sanctimony , tartuffery , two-facedness