Synonyms|1.1kAntonyms|559|Broader|13Narrower|0Related|1.3k
1
dissimulative
1
double
1
double-dealing
1
fanciful(adjective, reasonable, sensible, romantic, imaginary)
1
faux
1
fawning
1
foul
1
frivolous
1
gilded
1
guarded
1
hollow(adjective, false, artificial, meaningless)
1
knavish
1
left-handed
1
lying
1
manipulative
1
mealy
1
mealymouthed
1
mendacious
1
meretricious
1
niggardly
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ChicagoSmart Define. 2016. "sincere thesaurus" https://smartdefine.org/sincere/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2016, sincere thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/sincere/thesaurus/antonyms>.
MLASmart Define. "sincere thesaurus" 31 March 2016. Web. 28 September 2026. <https://smartdefine.org/sincere/thesaurus/antonyms>