35 entries under spontaneous topic. ×

3
willed(adjective, feature, characteristic, free, regard)
2
opted(adjective, free, deliberate, natural, willing)
2
optional(adjective, free, deliberate, natural, willing)
2
unbidden(adjective, free, deliberate, natural, willing)
2
uncompelled(adjective, free, deliberate, natural, willing)
2
unprescribed(adjective, free, deliberate, natural, willing)
0
willful(adjective, free, deliberate, natural, willing)
0
wished(adjective, free, deliberate, natural, willing)
0
witting(adjective, free, deliberate, natural, willing)
0
artless(natural, voluntary)
0
effortless(natural, voluntary)
0
natural
0
unprompted(natural, voluntary)
0
unwitting(natural, voluntary)
0
willing(free, charitable, independent, unpaid)
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APASmart Define. (2015). honorary thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/honorary/thesaurus/synonyms
ChicagoSmart Define. 2015. "honorary thesaurus" https://smartdefine.org/honorary/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, honorary thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/honorary/thesaurus/synonyms>.
MLASmart Define. "honorary thesaurus" 13 April 2015. Web. 30 September 2026. <https://smartdefine.org/honorary/thesaurus/synonyms>