50 entries under careless topic. ×

20
mutable(adjective, upset, change, uncertain)
10
changeful(adjective, upset, anxious, unstable)
10
flighty(adjective, unstable, unreasonable, unsettled)
9
temperamental(adjective, change, continue, delicate)
7
fanciful(adjective, free, wild, unstable)
7
ticklish(adjective, upset, change, continue, difficult)
6
impulsive(adjective, lively, active, unstable)
6
whimsical(adjective, change, free, continue)
5
wayward(adjective, unstable, unreasonable, irregular)
5
wanton(adjective, free, wild)
4
freakish(adjective, change, continue, unstable)
4
indefinite(adjective, loose, doubtful, vague)
3
lubricious(adjective, lively, uncertain, active)
3
moody(adjective, unstable, unreasonable, unpredictable)
3
unsound(adjective, loose, unstable, shaky)
1
any way the wind blows(expression, unstable, unreasonable, unpredictable)
1
arbitrary(unstable, unreasonable, irregular, unreliable)
1
blowing hot and cold(expression, unstable, unreasonable, unpredictable)
1
contrary(adjective, uncertain, unstable, unreasonable)
1
crotchety(adjective, unstable, unreasonable, unpredictable)
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APASmart Define. (2015). variable thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/variable/thesaurus/synonyms
ChicagoSmart Define. 2015. "variable thesaurus" https://smartdefine.org/variable/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, variable thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/variable/thesaurus/synonyms>.
MLASmart Define. "variable thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/variable/thesaurus/synonyms>