deceiver

This term carries a strong negative moral judgment, focusing on the intentionality and malice behind the act of lying. While a liar simply tells falsehoods, a deceiver is often perceived as a strategist who orchestrates a complex facade to manipulate others for personal gain or power.

In modern usage, the word often appears in formal, literary, or religious contexts. In casual conversation, speakers are more likely to use terms like scammer, fraud, or cheat, which specify the type of deception (financial or social) rather than the general character trait of being a deceiver.