The term "two face" is often associated with a person who is deceitful or has two different sides to their personality. Some synonyms for "two face" include hypocrite, phony, double-dealer, and backstabber. These words all describe someone who is not honest and may even be dangerous to be around. Other terms that describe someone with this type of personality include disingenuous, insincere, and duplicitous. Whatever words are used to describe a "two face," it is important to recognize these traits in people and approach them with caution, as they may not have your best interests at heart.