Synonyms|264Antonyms|20|Broader|2Narrower|0Related|11

69 entries under spontaneous topic. ×

1
natural(adjective, simple, casual, impulsive, willing)
1
off-the-cuff(adjective, simple, natural, casual, impulsive)
1
off top of head(expression, adjective, idiom, simple, natural)
1
offhand(adjective, simple, natural, casual, impulsive)
1
opted(adjective, free, deliberate, natural, witting)
1
simple(adjective, natural, casual, impulsive, willing)
1
unartful(adjective, simple, natural, casual, impulsive)
1
unavoidable(adjective, simple, natural, casual, impulsive)
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
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, voluntary)
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ChicagoSmart Define. 2015. "unbidden thesaurus" https://smartdefine.org/unbidden/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unbidden thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unbidden/thesaurus/synonyms>.
MLASmart Define. "unbidden thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/unbidden/thesaurus/synonyms>