75 entries under simple topic. ×

16
spontaneous(adjective, feature, characteristic, regard)
13
voluntary(adjective, feature, characteristic, open, free)
11
free(adjective, feature, characteristic, open)
9
instinctive(adjective, open, easy, natural)
8
uncompelled(adjective, free, deliberate, natural)
8
unconstrained(adjective, feature, characteristic, free)
7
willing(adjective, free, keen, enthusiastic)
6
natural(adjective, calm, open, smooth)
5
automatic(adjective, natural, casual, impulsive)
5
unbidden(adjective, free, keen, happy)
5
unpretentious(adjective, calm, open, smooth)
5
unstudied(adjective, open, easy, loose)
4
genuine(adjective, feature, characteristic, open, smooth)
4
impulsive(adjective, open, easy, natural)
3
easy(adjective, real, genuine, unaffected)
2
artless(adjective, open, easy, natural)
2
impetuous(adjective, natural, casual, impulsive)
2
involuntary(adjective, natural, casual, impulsive)
2
unaffected(adjective, calm, open, smooth)
2
unconscious(adjective, natural, casual, impulsive)
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APASmart Define. (2015). unforced thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/unforced/thesaurus/synonyms
ChicagoSmart Define. 2015. "unforced thesaurus" https://smartdefine.org/unforced/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, unforced thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/unforced/thesaurus/synonyms>.
MLASmart Define. "unforced thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/unforced/thesaurus/synonyms>