6 entries under willing topic. ×

10
voluntarily(adverb, happily, willingly, openly)
9
freely(adjective, adverb, impulsive, impromptu)
5
willingly(adverb, happily, freely, openly)
1
willfully
0
of one's own accord(idiom, adverb)
0
on one's own volition(idiom, adverb)
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APASmart Define. (2015). spontaneously thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/spontaneously/thesaurus/synonyms
ChicagoSmart Define. 2015. "spontaneously thesaurus" https://smartdefine.org/spontaneously/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, spontaneously thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/spontaneously/thesaurus/synonyms>.
MLASmart Define. "spontaneously thesaurus" 14 April 2015. Web. 26 September 2026. <https://smartdefine.org/spontaneously/thesaurus/synonyms>