118 entries under careless topic. ×

9
irresponsible(adjective, stupid, unstable, unsettled)
9
unpredictable(adjective, unstable, unreasonable, unsettled)
8
fanciful(adjective, unstable, unreasonable, erratic)
8
harebrained(adjective, ability, excited, silly)
8
irresolute(adjective, unstable, unsettled, unpredictable)
7
undependable(adjective, excited, unstable, unsettled)
7
featherbrained(adjective, slight, ability, silly)
7
fitful(adjective, unstable, unreasonable, unsettled)
6
changeful(adjective, unstable, unreasonable, unsettled)
6
foolish(adjective, simple, slight, silly)
6
moody(adjective, unstable, unreasonable, changeable)
6
reckless(adjective, wild, foolish, stupid)
5
effervescent(adjective, unstable, unreasonable, changeable)
5
gaga(adjective, ability, informal, lively)
5
mutable(adjective, unstable, unreasonable, unsettled)
4
crazy(adjective, beat, simple, wild)
4
frothy(adjective, slight, ability, crazy)
4
irrational(adjective, simple, foolish, stupid)
4
odd(unstable, unreasonable, unpredictable, changeable)
4
witless(stupid, unthinking, obtuse, unperceptive)
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APASmart Define. (2015). flighty thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/flighty/thesaurus/synonyms
ChicagoSmart Define. 2015. "flighty thesaurus" https://smartdefine.org/flighty/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, flighty thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/flighty/thesaurus/synonyms>.
MLASmart Define. "flighty thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/flighty/thesaurus/synonyms>