2
treacherously(adverb, doubtfully, dishonestly, affectedly, insincerely)
2
unfaithfully(adverb, doubtfully, dishonestly, affectedly, insincerely)
1
fakely(adverb, dishonesty, manner, falsehood)
1
flippantly(adverb, dishonesty, manner, falsehood)
1
disingenuously(adverb, dishonesty, manner, falsehood)
1
fraudulently(adverb, dishonesty, manner, falsehood)
1
jokingly(adverb, dishonesty, manner, falsehood)
1
abstractly(adverb, dishonesty, manner, falsehood)
1
allegedly(adverb, dishonesty, manner, falsehood)
1
ambitiously(adverb, dishonesty, manner, falsehood)
1
basely(adverb, doubtfully, dishonestly, affectedly, insincerely)
1
bogusly(adverb, dishonesty, manner, falsehood)
1
bombastically(adverb, dishonesty, manner, falsehood)
1
comprehensibly(adverb, dishonesty, manner, falsehood)
1
corruptly(adverb, dishonesty, manner, falsehood)
1
disapprovingly(adverb, dishonesty, manner, falsehood)
1
disbelievingly(adverb, dishonesty, manner, falsehood)
1
dishonorably(adverb, doubtfully, dishonestly, affectedly, insincerely)
1
dismissively(adverb, dishonesty, manner, falsehood)
1
dispassionately(adverb, dishonesty, manner, falsehood)
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APASmart Define. (2016). sincerely thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/sincerely/thesaurus/antonyms
ChicagoSmart Define. 2016. "sincerely thesaurus" https://smartdefine.org/sincerely/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2016, sincerely thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/sincerely/thesaurus/antonyms>.
MLASmart Define. "sincerely thesaurus" 30 March 2016. Web. 25 September 2026. <https://smartdefine.org/sincerely/thesaurus/antonyms>