50 entries under spendthrift topic. ×

1
inconsiderate(careless, casual, reckless, happy-go-lucky, slapdash)
1
negligent(adjective, careless, casual, reckless, happy-go-lucky)
1
outrageous(adjective, free, careless, wild, unreasonable)
1
preposterous(adjective, unreasonable, extravagant, ridiculous, excessive)
1
steep(adjective, unreasonable, extravagant, ridiculous, excessive)
1
thoughtless(careless, casual, reckless, happy-go-lucky, slapdash)
1
unconscionable(adjective, unreasonable, extravagant, ridiculous, excessive)
0
absurd(adjective, excessive, expensive, steep, high-priced)
0
bizarre(adjective, excessive, expensive, steep, high-priced)
0
costly(adjective, excessive, expensive, steep, high-priced)
0
crazy(adjective, excessive, expensive, steep, high-priced)
0
fancy(adjective, excessive, expensive, steep, high-priced)
0
fantastic(adjective, excessive, expensive, steep, high-priced)
0
flamboyant(adjective, excessive, expensive, steep, high-priced)
0
flashy(adjective, excessive, expensive, steep, high-priced)
0
foolish(adjective, excessive, expensive, steep, high-priced)
0
garish(adjective, excessive, expensive, steep, high-priced)
0
gaudy(adjective, excessive, expensive, steep, high-priced)
0
grandiose(adjective, excessive, expensive, steep, high-priced)
0
implausible(adjective, excessive, expensive, steep, high-priced)
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APASmart Define. (2016). wasteful thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/wasteful/thesaurus/synonyms
ChicagoSmart Define. 2016. "wasteful thesaurus" https://smartdefine.org/wasteful/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2016, wasteful thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/wasteful/thesaurus/synonyms>.
MLASmart Define. "wasteful thesaurus" 29 March 2016. Web. 29 September 2026. <https://smartdefine.org/wasteful/thesaurus/synonyms>