98 entries under spontaneous topic. ×

28
unrestrained(adjective, adverb, open, light, free)
22
free(adjective, adverb, feature, characteristic, close)
14
uncontrolled(adjective, separate, open, free, simple)
13
open(adjective, close, clear, light, free)
9
frank(adjective, clear, open, simple, easy)
8
unforced(adjective, feature, characteristic, free, simple)
8
voluntary(adjective, feature, characteristic, free, simple)
7
casual(adjective, clear, open, simple, easy)
7
independent(adjective, feature, characteristic, clear, separate)
6
autonomous(adjective, feature, characteristic, separate, free)
6
intended(adjective, feature, characteristic, free, regard)
6
loose(adjective, clear, open, light, simple)
6
straightforward(adjective, simple, easy, plain, relaxed)
6
volitional(adjective, feature, characteristic, free, regard)
5
genuine(adjective, feature, characteristic, total, full)
5
intentional(adjective, feature, characteristic, free, regard)
5
natural(adjective, simple, relaxed, straightforward, casual)
5
unasked(adjective, feature, characteristic, free, regard)
5
volunteer(adjective, feature, characteristic, free, regard)
5
willed(adjective, feature, characteristic, free, regard)
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APASmart Define. (2015). unconstrained thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unconstrained/thesaurus/synonyms
ChicagoSmart Define. 2015. "unconstrained thesaurus" https://smartdefine.org/unconstrained/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, unconstrained thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unconstrained/thesaurus/synonyms>.
MLASmart Define. "unconstrained thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/unconstrained/thesaurus/synonyms>