1
ultraexpensive(adjective, expensive, high-priced, pricey, pricely)
1
unaffordable(adjective, expensive, high-priced, pricey, pricely)
1
unapproachable(adjective, expensive, high-priced, pricey, pricely)
1
unattainable(adjective, expensive, high-priced, pricey, pricely)
1
unavailable(adjective, expensive, high-priced, pricey, pricely)
1
uneconomic
1
unfettered(adjective, free, careless, wild, extravagant)
1
unobtainable(adjective, expensive, high-priced, pricey, pricely)
1
unreserved(adjective, free, careless, wild, extravagant)
1
unrestrained(adjective, free, careless, wild, extravagant)
1
unsparing
1
unstinted
1
unstinting
1
up and down(expression, adjective, idiom, free, careless)
1
usurious(adjective, expensive, high-priced, pricey, pricely)
1
variable(adjective, free, careless, wild, extravagant)
1
vast(adjective, expensive, high-priced, pricey, pricely)
1
volatile(adjective, free, careless, wild, extravagant)
1
waste
1
waste thrift(expression, idiom, prodigality)
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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>