Synonyms|757Antonyms|120|Broader|2Narrower|0Related|147

70 entries under spontaneous topic. ×

1
unsophisticated(adjective, simple, natural, casual, impulsive)
1
up front(expression, adjective, simple, natural, casual)
1
voluntary(adjective, simple, natural, casual, impulsive)
1
vulnerable(unqualified, candid, unsuspecting, unready)
1
willing(adjective, simple, natural, casual, impulsive)
0
Band-Aid(unplanned, unpremeditated)
0
artless(impulsive, candid, impromptu, unprompted)
0
fly-by-night(unplanned, unpremeditated)
0
naive(candid, impromptu)
0
off your own bat(expression, idiom, willing, unforced)
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ChicagoSmart Define. 2016. "offhand thesaurus" https://smartdefine.org/offhand/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, offhand thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/offhand/thesaurus/synonyms>.
MLASmart Define. "offhand thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/offhand/thesaurus/synonyms>