10
shameful
10
hypocritical(adjective, false, dishonest, deceitful, pretending)
7
outrageous
7
ambidextrous
7
untruthful(adjective, open, false, dishonest)
6
dishonest(adjective, good, open, honest, false)
5
lying(adjective, false, dishonest)
5
deceitful(adjective, open, honest, false, dishonest)
5
false(adjective, open, sound, right, dishonest)
4
deceptive(adjective, open, dishonest, reliable)
3
devious(adjective, open, fair, false, dishonest)
3
fiction
3
fraudulent(adjective, open, genuine)
3
inaccurate(adjective, false, dishonest)
3
mendacious
2
crooked
2
fallacious(adjective, wrong, false)
2
fictitious(adjective, honest, untrue, factual)
2
furtive(adjective, sneaky, secretive)
2
hypocrite
<1234510>
10 years ago|2.4k views|share |citing 
APASmart Define. (2015). truthful thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/truthful/thesaurus/antonyms
ChicagoSmart Define. 2015. "truthful thesaurus" https://smartdefine.org/truthful/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, truthful thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/truthful/thesaurus/antonyms>.
MLASmart Define. "truthful thesaurus" 24 October 2015. Web. 23 September 2026. <https://smartdefine.org/truthful/thesaurus/antonyms>