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 21, 2026, from https://smartdefine.org/thriftless/thesaurus/synonyms
ChicagoSmart Define. 2015. "thriftless thesaurus" https://smartdefine.org/thriftless/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, thriftless thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/thriftless/thesaurus/synonyms>.
MLASmart Define. "thriftless thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/thriftless/thesaurus/synonyms>