Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English


English definition of “mendacious”


adjective     /menˈdeɪ.ʃəs/ formal
not telling the truth : Some of these statements are misleading and some downright mendacious.True, real, false, and unrealDishonest
(Definition of mendacious adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of mendacious

Definitions of “mendacious” in other dictionaries

Word of the Day


to pour liquid slowly over something, especially in a thin line or in small drops

Word of the Day


Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More