167 entries under adjective topic. ×

22
spontaneous(noun, free, impulsive, planned)
21
impulsive(noun, rude, careless, natural)
19
unplanned(noun, free, chance, casual)
17
extemporaneous(noun, impulsive, planned, impulse)
17
involuntary(noun, natural, planned, ignorant)
15
impromptu(adverb, free, impulsive, planned)
14
unintentional(chance, planned, ignorant, hidden)
14
unthinking(careless, casual, impulsive, instinctive)
13
accidental(careless, chance, casual, planned)
13
casual(free, careless, chance, random)
13
offhand(noun, free, careless, casual)
12
natural(impulse, instinctive, automatic, involuntary)
11
extempore(free, planned, spontaneous, impromptu)
11
hasty(passionate, violent, thoughtless, impulsive)
11
instinctive(noun, rude, passionate, violent)
10
automatic(free, casual, planned, spontaneous)
10
inadvertent(careless, casual, thoughtless, unwise)
10
unintended(rude, careless, chance, casual)
10
unprepared(free, spontaneous, impromptu, unplanned)
10
unprompted(passionate, violent, impulse, abrupt)
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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>