35 entries under voluntary topic. ×

3
volunteer(adjective, feature, characteristic, free, deliberate)
3
willed(adjective, feature, characteristic, free, deliberate)
1
opted(adjective, free, deliberate, natural, willing)
1
optional(adjective, free, deliberate, natural, willing)
1
unbidden(adjective, free, deliberate, natural, willing)
1
uncompelled(adjective, free, deliberate, natural, willing)
1
unprescribed(adjective, free, deliberate, natural, willing)
1
willful(adjective, free, deliberate, natural, willing)
1
wished(adjective, free, deliberate, natural, willing)
1
witting(adjective, free, deliberate, natural, willing)
0
artless(natural, spontaneous)
0
effortless(natural, spontaneous)
0
natural
0
unprompted(natural, spontaneous, unasked, unbidden)
0
unwitting(natural, spontaneous)
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APASmart Define. (2015). freely thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/freely/thesaurus/synonyms
ChicagoSmart Define. 2015. "freely thesaurus" https://smartdefine.org/freely/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, freely thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/freely/thesaurus/synonyms>.
MLASmart Define. "freely thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/freely/thesaurus/synonyms>