Translation guide
In Japanese, directly calling someone a 'liar' is strong and often avoided. The most common equivalent is 嘘つき (usotsuki), but depending on context, softer or more indirect expressions are preferred. This guide covers direct accusations, describing dishonest people, and common phrases for calling out lies.
Expressing that someone is lying or has lied, often in an emotional or confrontational way.
The most direct and common translation. Can be used by anyone, but is strong and often childish. Use with caution.
Verb phrase meaning 'to tell a lie'. More descriptive than calling someone a liar. Often used to say 'you're lying' without the label.
嘘をつかないで。
Don't lie.
彼は嘘をついている。
He is lying.
Means 'That's a lie, right?' or 'You're kidding.' Often used to express disbelief rather than a direct accusation. Softer than 嘘つき.
それ、嘘でしょ。
That's a lie, isn't it?
Emphatic form: 'big liar' or 'pathological liar'. Stronger and more insulting.
あいつは大嘘つきだ。
That guy is a huge liar.
Characterizing someone who habitually lies or is untrustworthy, often in a more detached or descriptive way.
Works as a noun to describe a person who lies. Can be used in neutral descriptions.
彼は嘘つきだから信用できない。
He's a liar, so I can't trust him.
Literally 'often tells lies'. A softer way to describe someone as a liar without the strong label.
あの子は嘘をよくつく。
That child often tells lies.
Means 'swindler' or 'con artist'. Implies deliberate deception for gain, not just casual lying.
Expressing that something is untrue without directly calling the person a liar, often to be polite or avoid confrontation.
Means 'That's not right/correct.' A very common and safe way to contradict someone without accusing them of lying.
それは違うと思います。
I think that's not correct.
Means 'Is that true?' Expresses doubt politely. Often used when you suspect a lie but don't want to accuse directly.
それ、本当ですか？
Is that really true?
Means 'I can't believe it.' Shows disbelief without directly saying 'liar'. Can be used for surprising news as well.
そんなこと、信じられない。
I can't believe that.
Calling someone 嘘つき (usotsuki) is very direct and can be rude. In many situations, Japanese speakers prefer indirect expressions like それは違う (sore wa chigau) or 本当ですか (hontō desu ka) to avoid confrontation.
嘘つき (usotsuki) is a noun meaning 'liar' and carries a strong label. 嘘をつく人 (uso o tsuku hito) literally means 'a person who tells lies' and is more descriptive and less accusatory. Use the latter if you want to soften the statement.
彼は嘘をつく人だ。
He is a person who tells lies.
私に嘘をつかないで。
Don't lie to me.
彼は嘘つきで有名だ。
He's known as a liar.
彼はペテン師だ。
He's a con man.