a person who professes beliefs and opinions that he or she does not hold in order to conceal his or her real feelings or motives
"He might have joined the charity gala wearing an elaborate tuxedo, but everyone knew he was just phony pretending to care about the cause."
A person who assumes an identity or quality other than their own.
"The new intern was such a phony that he couldn't stop pretending to know things about our company history."
To fake.
"He tried to act like he was impressed, but his phony applause felt completely forced and insincere."
Fraudulent; fake; having a misleading appearance.
"The celebrity's sudden return to acting felt phony after years of silence, and everyone could see he was just trying to cash in on his old fame."