257 entries under adjective topic. ×

5
uncompelled(free, simple, deliberate, natural)
5
uncompensated(feature, characteristic, work, pay)
5
unprompted(simple, natural, casual, impulsive)
5
wilful
5
willed(feature, characteristic, free, deliberate)
4
complimentary(feature, characteristic, free, gratis)
4
designful(feature, characteristic, set, direct)
4
freely(feature, characteristic, free, deliberate)
4
genuine(feature, characteristic, natural, spontaneous)
4
uncoerced
3
facultative(open, free, elective, optional)
3
favoured(feature, characteristic)
3
free-willed(feature, characteristic, free, deliberate)
3
honourary(feature, characteristic)
3
instinctive(simple, natural, casual, impulsive)
3
natural(simple, casual, impulsive, willing)
3
nominal(feature, characteristic)
3
purposed(verb, deliberate, careful, thoughtful)
3
unrecompensed(work, pay, unpaid, unrewarded)
3
unremunerated(work, pay, unpaid, unrewarded)
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APASmart Define. (2015). voluntary thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/voluntary/thesaurus/synonyms
ChicagoSmart Define. 2015. "voluntary thesaurus" https://smartdefine.org/voluntary/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, voluntary thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/voluntary/thesaurus/synonyms>.
MLASmart Define. "voluntary thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/voluntary/thesaurus/synonyms>