111 entries under adjective topic. ×

27
offhand(adverb, free, simple, fake)
27
unprepared(adverb, free, ready, spontaneous)
24
extemporaneous(adverb, simple, informal, natural)
24
extempore(adverb, free, simple, fake)
22
spontaneous(adverb, free, impulsive, willing)
17
unrehearsed(free, impulsive, prepared, spontaneous)
16
extemporary(free, casual, impulsive, prepared)
16
improvised(free, simple, fake, informal)
14
unpremeditated(adverb, free, impulsive, planned)
14
unplanned(free, simple, fake, informal)
13
ad lib(expression, idiom, adverb, free)
13
off the cuff(expression, idiom, adverb, free)
13
ad-lib(noun, adverb, free, simple)
12
makeshift(adverb, free, spontaneous, unprepared)
12
off-the-cuff(adverb, simple, informal, natural)
11
casual(free, simple, fake, natural)
10
instinctive(simple, natural, casual, impulsive)
10
spur-of-the-moment(adverb, free, prepared, spontaneous)
9
unstudied(adverb, free, simple, fake)
9
improviso(adverb, free, impulse, spontaneous)
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APASmart Define. (2016). impromptu thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/impromptu/thesaurus/synonyms
ChicagoSmart Define. 2016. "impromptu thesaurus" https://smartdefine.org/impromptu/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, impromptu thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/impromptu/thesaurus/synonyms>.
MLASmart Define. "impromptu thesaurus" 28 January 2016. Web. 21 September 2026. <https://smartdefine.org/impromptu/thesaurus/synonyms>