87 entries under voluntary topic. ×

1
unconscious(adjective, simple, natural, casual, impulsive)
1
unconstrained(adjective, free, simple, deliberate, natural)
1
uncontrived(adjective, simple, natural, casual, impulsive)
1
uncontrolled(adjective, simple, natural, casual, impulsive)
1
undemanded(adjective, willing, arrogant, freely)
1
unintentional(adjective, simple, natural, casual, impulsive)
1
unpaid(adjective, free, deliberate, natural, willing)
1
unplanned(adjective, simple, natural, casual, impulsive)
1
unpremediated(adjective, simple, natural, casual, impulsive)
1
unprescribed(adjective, free, deliberate, natural, witting)
1
unsophisticated(adjective, simple, natural, casual, impulsive)
1
unstudied(adjective, simple, natural, casual, impulsive)
1
unwitting(natural, spontaneous)
1
up front(expression, adjective, simple, natural, casual)
1
volitional(adjective, free, deliberate, natural, willing)
1
voluntarily(adjective, willing, arrogant, freely)
1
willed(adjective, free, deliberate, natural, witting)
1
wished(adjective, free, deliberate, natural, witting)
1
without prompting(expression, adjective, willing, arrogant, freely)
1
witting(adjective, free, keen, happy, agreeable)
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APASmart Define. (2015). unbidden thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unbidden/thesaurus/synonyms
ChicagoSmart Define. 2015. "unbidden thesaurus" https://smartdefine.org/unbidden/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, unbidden thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unbidden/thesaurus/synonyms>.
MLASmart Define. "unbidden thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/unbidden/thesaurus/synonyms>