87 entries under passionate topic. ×

41
genuine(adjective, feature, characteristic, good, close)
40
earnest(noun, adjective, feeling, open, pleasant)
37
candid(adjective, feature, characteristic, good, strong)
37
frank(noun, adjective, feature, characteristic, good)
37
true(adjective, feature, characteristic, good, person)
27
heartfelt(adjective, open, great, pleasant, keen)
22
real(adjective, good, person, open, direct)
20
unfeigned(adjective, good, person, open, correct)
17
bona fide(expression, adjective, idiom, good, open)
16
unreserved(adjective, person, open, direct, free)
15
serious(noun, adjective, set, open, keen)
12
fervent(adjective, feeling, complete, keen, warm)
12
hearty(adjective, person, feeling, open, great)
11
ardent(adjective, close, feeling, correct, keen)
11
authentic(adjective, good, close, correct, right)
11
wholehearted(adjective, person, open, pleasant, keen)
10
zealous(adjective, person, feeling, keen, warm)
9
devout(adjective, open, keen, warm, honest)
9
profound(adjective, great, warm, intense)
9
warm(adjective, open, kind, pleasant, keen)
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APASmart Define. (2016). sincere thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/sincere/thesaurus/synonyms
ChicagoSmart Define. 2016. "sincere thesaurus" https://smartdefine.org/sincere/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, sincere thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/sincere/thesaurus/synonyms>.
MLASmart Define. "sincere thesaurus" 31 March 2016. Web. 29 September 2026. <https://smartdefine.org/sincere/thesaurus/synonyms>