73 entries under casual topic. ×

3
hit-or-miss(adjective, careless, chance, spontaneous)
3
sudden(noun, adjective, passionate, violent, careless)
3
unexpected(adjective, passionate, violent, careless)
3
unmeant(adjective, rude, careless, thoughtless)
3
unorganized(adjective, careless, arbitrary)
2
ad hoc(expression, adjective, free, unrehearsed)
2
arbitrary(adjective, careless, chance, random)
2
careless(adjective, passionate, violent, thoughtless)
2
improv(free, informal, spontaneous, unprepared)
2
improvisatory(free, informal, impulsive, impulse)
2
improviso(adjective, free, spontaneous, unprepared)
2
informal(adjective, free, snap, spontaneous)
2
made-up(adjective, free, informal, snap)
2
reckless(noun, adjective, careless, thoughtless)
2
winging it(expression, free, violent, unrehearsed)
1
aimless(careless, chance, random, haphazard)
1
at first glance(expression, free, informal, snap)
1
autoschediastic(adjective, free, impulsive, spontaneous)
1
by ear(expression, free, informal, unrehearsed)
1
contingent(chance, random, haphazard, unplanned)
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APASmart Define. (2015). unpremeditated thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/unpremeditated/thesaurus/synonyms
ChicagoSmart Define. 2015. "unpremeditated thesaurus" https://smartdefine.org/unpremeditated/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, unpremeditated thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/unpremeditated/thesaurus/synonyms>.
MLASmart Define. "unpremeditated thesaurus" 10 April 2015. Web. 1 October 2026. <https://smartdefine.org/unpremeditated/thesaurus/synonyms>