Meanings
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1
adj
given to lying
A mendacious child.
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2
adj
intentionally untrue
A mendacious statement.
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3
adj
Lying, untruthful or dishonest.
He was dismissed as a mendacious witness.
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4
adj
False or untrue.
Mendacious propaganda.
Thesaurus
Synonyms
Word family
Derived forms
mendaciouslymendaciousnessunmendacious
Etymology
Borrowed from Middle French mendacieux, from Latin mendācium (“lie, untruth”), from mendāx (“lying”).