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

46 entries under unplanned topic. ×

1
autoschediastic(free, casual, impulsive, spontaneous, unprepared)
1
extemporize(verb, adjective, informal, off-the-cuff)
1
faked(adjective, adverb, mock, affected, unprepared)
1
unintentional(adjective, simple, natural, chance, casual)
1
vamped(adjective, adverb, unprepared, unrehearsed)
1
whipped up(expression, adjective, adverb, unprepared)
1
without restraint(expression, adverb, informal, extemporize)
0
Band-Aid(substitute, spontaneous, temporary, unpremeditated)
0
accidental(chance, unintended, unpremeditated)
0
adventitious(chance, accidental, unintended, unpremeditated)
0
by chance(expression, chance, unpremeditated)
0
chance
0
contingent(chance, unpremeditated)
0
erratic(chance, unpremeditated)
0
fluky(chance, unpremeditated)
0
fly-by-night(spontaneous, unpremeditated)
0
fortuitous(chance, accidental, unintended, unpremeditated)
0
hit-or-miss(spontaneous, unpremeditated)
0
incidental(chance, unpremeditated)
0
infrequent(chance, unpremeditated)
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APASmart Define. (2016). impromptu thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/impromptu/thesaurus/synonyms
ChicagoSmart Define. 2016. "impromptu thesaurus" https://smartdefine.org/impromptu/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, impromptu thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/impromptu/thesaurus/synonyms>.
MLASmart Define. "impromptu thesaurus" 28 January 2016. Web. 26 September 2026. <https://smartdefine.org/impromptu/thesaurus/synonyms>