Synonyms|363Antonyms|90|Broader|9Narrower|7Related|1k

111 entries under adjective topic. ×

1
unforced(simple, natural, casual, impulsive)
1
unintentional(simple, natural, chance, casual)
1
unpremediated(simple, natural, casual, impulsive)
1
unprompted(adverb, simple, natural, casual)
1
unsophisticated(simple, natural, casual, impulsive)
1
up front(expression, simple, natural, casual)
1
vamped(adverb, unprepared, unplanned, unrehearsed)
1
voluntary(simple, natural, casual, impulsive)
1
whipped up(expression, adverb, unprepared, unplanned)
1
willing(simple, natural, casual, impulsive)
0
brusque
0
cavalier
0
coincidental
0
curt
0
emergency
0
last-minute
0
nonchalant
0
not disclosed(expression, unexpected)
0
pick-up
0
provisional
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APASmart Define. (2016). impromptu thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/impromptu/thesaurus/synonyms
ChicagoSmart Define. 2016. "impromptu thesaurus" https://smartdefine.org/impromptu/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, impromptu thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/impromptu/thesaurus/synonyms>.
MLASmart Define. "impromptu thesaurus" 28 January 2016. Web. 24 September 2026. <https://smartdefine.org/impromptu/thesaurus/synonyms>