81 entries under casual topic. ×

6
unconscious(adjective, simple, natural, impulsive)
5
ad lib(expression, adjective, free, unrehearsed)
5
aimless(adjective, insignificant, irregular, senseless)
5
improvised(adjective, free, simple, fake, informal)
5
unrehearsed(adjective, free, informal, unqualified)
4
ad-lib(adjective, free, simple, fake, informal)
4
makeshift(adjective, free, informal, impulsive)
4
spot(adjective, chance, irregular, planned)
4
unconsidered(noun, adjective, chance, irregular)
4
uncontrived(adjective, simple, natural, impulsive)
4
unprompted(adjective, simple, natural, impulsive)
3
extemporary(adjective, free, impulsive, spontaneous)
3
fluky(adjective, chance, random, haphazard)
3
instinctive(noun, adjective, simple, natural)
3
natural(adjective, simple, impulsive, willing)
2
automatic(adjective, free, simple, fake, natural)
2
designless(adjective, insignificant, irregular, senseless)
2
free(adjective, simple, fake, natural)
2
informal(adjective, free, impulsive, unprepared)
2
off-the-cuff(adjective, simple, informal, natural, chance)
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APASmart Define. (2015). unplanned thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unplanned/thesaurus/synonyms
ChicagoSmart Define. 2015. "unplanned thesaurus" https://smartdefine.org/unplanned/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unplanned thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unplanned/thesaurus/synonyms>.
MLASmart Define. "unplanned thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/unplanned/thesaurus/synonyms>