How to Say "liar" in Spanish
The Spanish word for “liar” is “mentiroso” — A2 level. This is a very common word in everyday Spanish.
English → SpanishA2
nounA2
a person who lies

Examples
¡No le creas! Es un mentiroso.
Don't believe him! He is a liar.
Mi hijo dijo que no era un mentiroso, pero tenía chocolate en la cara.
My son said he wasn't a liar, but he had chocolate on his face.
The Female Liar
If you are referring to a woman, the noun changes to 'la mentirosa.' The concept is the same, but the word must match her gender.
Related Translations
Learn Spanish with Inklingo
Interactive stories, personalized learning, and more.