167 entries under adjective topic. ×

5
extemporary(free, casual, impulsive, spontaneous)
5
precipitate(noun, passionate, violent, thoughtless)
5
reflexive(impulsive, unwilling, obligatory, compulsory)
5
unguarded(thoughtless, impulse, unwary, nonpreparation)
5
unrehearsed(free, impulsive, spontaneous, unprepared)
4
ad-lib(spontaneous, unprepared, impromptu, unplanned)
4
candid
4
incidental(careless, chance, casual, random)
4
makeshift(free, informal, casual, snap)
4
thoughtless(careless, impetuous, inconsiderate, hasty)
4
uncontrived
4
unforeseen(chance, intention, unplanned, accidental)
3
coincidental
3
extemporized(spontaneous, unprepared, unplanned, unrehearsed)
3
headlong(noun, passionate, violent, thoughtless)
3
heedless(careless, thoughtless, inconsiderate)
3
hit-or-miss(careless, chance, casual, spontaneous)
3
hurried(impulsive, rash, unthinking)
3
ill-considered
3
quick(noun, passionate, violent, irritable)
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APASmart Define. (2015). unpremeditated thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unpremeditated/thesaurus/synonyms
ChicagoSmart Define. 2015. "unpremeditated thesaurus" https://smartdefine.org/unpremeditated/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unpremeditated thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unpremeditated/thesaurus/synonyms>.
MLASmart Define. "unpremeditated thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/unpremeditated/thesaurus/synonyms>