16
half ass
13
improvident(adjective, careless, careful, extravagant, generous)
11
extravagant(adjective, free, careless, wild, grand)
11
prodigal(adjective, free, careless, wild, extravagant)
11
profligate(adjective, careless, extravagant, generous, abundant)
10
spendthrift(noun, adjective, free, careless, wild)
8
lavish(adjective, careless, extravagant, generous, splendid)
8
wasteful(adjective, free, careless, wild, grand)
7
unthrifty(adjective, careful, reckless, prodigality, nonpreparation)
6
profuse(adjective, wasteful, prodigality)
6
squandering
5
negligent
4
shiftless(adjective, nonpreparation)
4
thoughtless(adjective, nonpreparation)
3
opulent(adjective, grand, generous, abundant, sumptuous)
3
unrestrained(adjective, free, careless, wild, extravagant)
3
waste(noun, verb)
2
abundant(adjective, grand, extravagant, generous, luxurious)
2
bountiful(adjective, grand, extravagant, generous, abundant)
2
capricious(adjective, free, careless, wild, extravagant)
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APASmart Define. (2015). thriftless thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/thriftless/thesaurus/synonyms
ChicagoSmart Define. 2015. "thriftless thesaurus" https://smartdefine.org/thriftless/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, thriftless thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/thriftless/thesaurus/synonyms>.
MLASmart Define. "thriftless thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/thriftless/thesaurus/synonyms>