2
unreasonable(adjective, excessive, expensive, steep, high-priced)
2
upscale(adjective, expensive, steep, high-priced, costly)
2
valuable(adjective, expensive, steep, high-priced, costly)
1
abundant
1
astronomical(adjective, expensive, high-priced, pricey, pricely)
1
boor(noun, person, money, behavior)
1
capricious(adjective, free, careless, wild, extravagant)
1
careless
1
churl(noun, person, money, behavior)
1
conscienceless(adjective, expensive, high-priced, pricey, pricely)
1
consumptive(adjective, expensive, high-priced, pricey, pricely)
1
copious
1
cost-consuming(adjective, expensive, high-priced, pricey, pricely)
1
cost intensive(adjective, expensive, high-priced, pricey, pricely)
1
costive(adjective, expensive, high-priced, pricey, pricely)
1
crosspatch(noun, person, money, behavior)
1
deluxe(adjective, expensive, high-priced, pricey, pricely)
1
devil-may-care(adjective, free, careless, wild, extravagant)
1
dissipated
1
dissipative
11 years ago|7.1k views|share |citing 
APASmart Define. (2015). spendthrift thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/spendthrift/thesaurus/synonyms
ChicagoSmart Define. 2015. "spendthrift thesaurus" https://smartdefine.org/spendthrift/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, spendthrift thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/spendthrift/thesaurus/synonyms>.
MLASmart Define. "spendthrift thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/spendthrift/thesaurus/synonyms>