93 entries under adjective topic. ×

7
offhanded
7
snap(noun, free, casual, impulsive)
5
haphazard(unprepared, unplanned, accidental, inadvertent)
5
hasty(thoughtless, impulsive, impetuous, unwary)
5
undevised(unprepared, unplanned, unintentional, accidental)
4
ad libitum(expression, idiom, adverb, informal)
4
automatic(simple, passionate, violent, natural)
4
improviso(free, casual, spontaneous, unprepared)
4
instinctive(noun, simple, passionate, violent)
4
rash(noun, thoughtless, impulsive, impetuous)
4
rough-and-ready
4
sudden(noun, thoughtless, impetuous, unwary)
4
uncontrived(simple, natural, casual, impulsive)
4
unprompted(simple, plain, violent, natural)
3
abrupt(thoughtless, impulsive, impetuous, unwary)
3
by ear(expression, idiom, free, casual)
3
extemporal(unrehearsed, extemporary)
3
extemporized(fake, informal, spontaneous, unprepared)
3
fake(free, casual, impulsive, spontaneous)
3
immediate(noun, free, casual, impulsive)
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APASmart Define. (2015). extemporaneous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/extemporaneous/thesaurus/synonyms
ChicagoSmart Define. 2015. "extemporaneous thesaurus" https://smartdefine.org/extemporaneous/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, extemporaneous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/extemporaneous/thesaurus/synonyms>.
MLASmart Define. "extemporaneous thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/extemporaneous/thesaurus/synonyms>