210 entries under casual topic. ×

20
extempore(adjective, adverb, free, simple, fake)
19
impromptu(adjective, adverb, free, simple, fake)
16
spontaneous(noun, adjective, free, informal, careless)
15
extemporaneous(noun, adjective, simple, informal, natural)
14
extemporary(adjective, free, informal, impulsive)
13
unstudied(adjective, free, simple, fake, informal)
12
abrupt(adjective, rough, rude, passionate, violent)
11
careless(adjective, calm, cool, passionate, violent)
11
cavalier(adjective, rude, careless, indifferent, fresh)
11
perfunctory(adjective, careless, indifferent, sloppy)
10
cursory(adjective, careless, indifferent, sloppy)
10
curt(adjective, rough, rude, careless, indifferent)
10
improvised(adjective, free, simple, fake, informal)
10
unconcerned(adjective, calm, cool, mild, careless)
9
ad-lib(adjective, adverb, free, simple, fake)
9
indifferent(adjective, calm, cool, careless, relaxed)
9
off-the-cuff(adjective, adverb, simple, informal, natural)
8
informal(adjective, cool, free, careless)
8
brusque(adjective, rough, rude, careless, indifferent)
8
cool(adjective, calm, informal, careless, relaxed)
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APASmart Define. (2016). offhand thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/offhand/thesaurus/synonyms
ChicagoSmart Define. 2016. "offhand thesaurus" https://smartdefine.org/offhand/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, offhand thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/offhand/thesaurus/synonyms>.
MLASmart Define. "offhand thesaurus" 24 March 2016. Web. 23 September 2026. <https://smartdefine.org/offhand/thesaurus/synonyms>