The term "two faces" can be used to describe someone who presents a false or inconsistent persona. There are several synonyms for this term, including duplicitous, deceitful, hypocritical, insincere, phony, false, and double-dealing. Each of these words implies a lack of authenticity and honesty in a person's behavior or statements. Additionally, the phrase "two-faced" can be used to describe someone who is untrustworthy or unreliable. In any context, it's important to be cautious of individuals who display these characteristics and to exercise discernment when interacting with them.