97 entries under willing topic. ×

11
spontaneous(adjective, free, deliberate, natural, impulsive)
9
unasked(adjective, free, keen, happy, agreeable)
9
voluntary(adjective, free, simple, keen, happy)
6
uninvited(adjective, arrogant, voluntary, unwelcome)
5
free(adjective, simple, deliberate, natural, casual)
5
gratuitous(adjective, free, deliberate, natural)
4
unforced(adjective, free, simple, keen, happy)
4
uncompelled(adjective, free, simple, deliberate, natural)
3
unprompted(adjective, simple, natural, casual, impulsive)
3
unsought(adjective, arrogant, voluntary, unwelcome)
3
unwanted(adjective, arrogant, voluntary, unwelcome)
3
unwelcome(adjective, arrogant, voluntary, unsolicited)
3
automatic(adjective, simple, natural, casual, impulsive)
3
autonomous(adjective, free, deliberate, natural)
3
discretional(adjective, free, deliberate, natural, witting)
3
independent(adjective, free, deliberate, natural)
3
unrequested(adjective, arrogant, freely, voluntary)
2
instinctive(adjective, simple, natural, casual, impulsive)
2
intended(adjective, free, deliberate, natural)
2
optional(adjective, free, deliberate, natural)
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APASmart Define. (2015). unbidden thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/unbidden/thesaurus/synonyms
ChicagoSmart Define. 2015. "unbidden thesaurus" https://smartdefine.org/unbidden/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, unbidden thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/unbidden/thesaurus/synonyms>.
MLASmart Define. "unbidden thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/unbidden/thesaurus/synonyms>