134 entries under sincere topic. ×

14
vigorous(adjective, keen, warm, intense, energetic)
13
emotional(adjective, strong, moving, keen, warm)
13
glowing(adjective, feeling, strong, keen, warm)
13
hearty(adjective, person, feeling, kind, keen)
13
heated(adjective, strong, moving, keen, difficult)
12
true(adjective, close, kind, correct, keen)
11
deep(adjective, person, strong, warm, difficult)
11
perfervid(noun, adjective, strong, keen, warm)
10
heartfelt(adjective, strong, keen, warm, difficult)
10
hot-blooded(adjective, moving, keen, warm, intense)
9
active(adjective, energetic, enthusiastic, excited, lively)
9
blazing(adjective, strong, keen, warm, difficult)
9
exuberant(adjective, person, keen, warm, energetic)
9
lively(adjective, strong, keen, warm, intense)
9
loving(adjective, close, love, kind, correct)
8
amorous(adjective, love, kind, friendly, warm)
8
wholehearted(adjective, strong, keen, warm, firm)
7
affectionate(adjective, close, love, kind, correct)
7
cordial(adjective, person, feeling, kind, friendly)
7
devout(adjective, kind, keen, warm, intense)
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APASmart Define. (2016). ardent thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/ardent/thesaurus/synonyms
ChicagoSmart Define. 2016. "ardent thesaurus" https://smartdefine.org/ardent/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, ardent thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/ardent/thesaurus/synonyms>.
MLASmart Define. "ardent thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/ardent/thesaurus/synonyms>