49 entries under impulsive topic. ×

22
spontaneous(noun, adjective, free, planned)
21
impulsive(noun, adjective, rude, careless, natural)
19
unplanned(noun, adjective, free, chance, casual)
17
extemporaneous(noun, adjective, planned, impulse)
15
impromptu(adjective, adverb, free, planned)
14
unthinking(adjective, careless, casual, instinctive)
11
hasty(adjective, passionate, violent, thoughtless)
9
spur-of-the-moment(noun, adjective, free, spontaneous)
7
improvised(adjective, free, casual, impulse)
6
impetuous(noun, adjective, thoughtless, thinking)
6
rash(noun, adjective, passionate, violent, careless)
6
snap(noun, adjective, free, informal, casual)
5
abrupt(adjective, passionate, violent, thoughtless)
5
extemporary(adjective, free, casual, spontaneous)
5
reflexive(adjective, unwilling, obligatory, compulsory)
5
unrehearsed(adjective, free, spontaneous, unprepared)
3
hurried(adjective, rash, unthinking)
3
ill-considered
3
unexpected(adjective, passionate, violent, careless, casual)
2
improvisatory(free, informal, casual, impulse)
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APASmart Define. (2015). unpremeditated thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unpremeditated/thesaurus/synonyms
ChicagoSmart Define. 2015. "unpremeditated thesaurus" https://smartdefine.org/unpremeditated/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, unpremeditated thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unpremeditated/thesaurus/synonyms>.
MLASmart Define. "unpremeditated thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/unpremeditated/thesaurus/synonyms>