7
dear(adjective, open, honest, true, straightforward)
7
serious(adjective, open, keen, warm, honest)
6
bona fide(expression, adjective, open, warm, honest)
6
absorbing
6
fervid(adjective, strong, keen, difficult, intense)
6
instinctive(adjective, gut, intuitive)
6
natural(adjective, honest, true, straightforward, real)
6
poignant(adjective, strong, difficult, intense, violent)
6
unaffected(adjective, open, honest, true, straightforward)
6
zealous(adjective, strong, keen, warm, difficult)
5
basic(adjective, gut, intuitive)
5
deep-seated(adjective, great, intense, natural, emotional)
5
devoted(adjective, strong, complete, warm, total)
5
extreme(great, intense, involved, overwhelming)
5
keen(adjective, strong, great, intense, passionate)
4
acute(great, intense, overwhelming)
4
authentic(adjective, complete, warm, total, physical)
4
beautiful
4
candid(adjective, open, honest, total, passionate)
4
committed(adjective, complete, warm, total, passionate)
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APASmart Define. (2016). heartfelt thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/heartfelt/thesaurus/synonyms
ChicagoSmart Define. 2016. "heartfelt thesaurus" https://smartdefine.org/heartfelt/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, heartfelt thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/heartfelt/thesaurus/synonyms>.
MLASmart Define. "heartfelt thesaurus" 31 March 2016. Web. 27 September 2026. <https://smartdefine.org/heartfelt/thesaurus/synonyms>