- The definition of mendacious describes a dishonest person or thing.
An example of mendacious used as an adjective is a mendacious person, a dishonest person.
Origin of mendacious; from Classical Latin mendax (gen. mendacis) ; from Indo-European base an unverified form mend-, a flaw from source Classical Latin emendare, emend
- Lying; untruthful: a mendacious child.
- False; untrue: a mendacious statement. See Synonyms at dishonest.
Origin of mendaciousFrom Latin mendācium, lie, from mendāx, mendāc-, mendacious.
(comparative more mendacious, superlative most mendacious)