46 entries under casual topic. ×

21
reckless(adjective, neglect, careless, foolish, cheerful)
20
wasteful(adjective, careless, extravagant, thoughtless)
17
imprudent(noun, adjective, neglect, careless, foolish)
16
incautious(adjective, careless, foolish, careful)
16
thoughtless(adjective, careless, foolish, bold)
15
careless(adjective, foolish, bold, extravagant)
15
heedless(adjective, careless, foolish, cheerful)
8
indiscreet(adjective, careless, foolish, bold)
8
injudicious(adjective, careless, foolish, bold)
7
hasty(adjective, careless, foolish, careful)
7
unthinking(adjective, careless, foolish, bold)
6
happy-go-lucky(adjective, unconcerned, slapdash, nonpreparation)
6
negligent(adjective, careless, bold, thoughtless)
5
inconsiderate(adjective, careless, foolish, bold)
5
unmindful(adjective, careless, bold, thoughtless)
4
slapdash(adjective, careless, careful, rash)
3
mindless(adjective, happy-go-lucky, slapdash)
3
unguarded(adjective, careless, bold, thoughtless)
2
indifferent(neglect, happy-go-lucky, slapdash)
2
irresponsible(adjective, careless, foolish, thoughtless)
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APASmart Define. (2015). improvident thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/improvident/thesaurus/synonyms
ChicagoSmart Define. 2015. "improvident thesaurus" https://smartdefine.org/improvident/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, improvident thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/improvident/thesaurus/synonyms>.
MLASmart Define. "improvident thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/improvident/thesaurus/synonyms>