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mendacious

men·da·cious

mendacious

 
 
pronunciation:
men deI shs
part of speech: adjective
definition 1: untruthful.
We knew he was a mendacious person, so we didn't believe he was telling the truth.
synonyms:
dishonest, duplicitous, lying, untruthful
antonyms:
truthful, veracious
similar words:
crooked, deceitful, disingenuous, fraudulent, guileful, insincere, two-faced, underhanded
definition 2: untrue.
a mendacious accusation
synonyms:
false, untrue, untruthful
antonyms:
truthful, veracious
similar words:
erroneous, fabricated, fallacious, inaccurate, meretricious, misleading, sham, spurious, wrong
derivations: mendaciously (adv.), mendaciousness (n.)