6
stiff(adjective, fancy, extraordinary, extreme, high)
6
uneconomical(adjective, fancy, high, expensive, exclusive)
6
unreasonable(adjective, fancy, high, excessive, expensive)
5
extortionate(adjective, excessive, expensive, steep, high-priced)
5
high-end(adjective, expensive, high-priced, pricey, pricely)
5
inestimable(adjective, value, important, useful, valuable)
5
inflated(adjective, expensive, high-priced, pricey, pricely)
5
lavish(adjective, fancy, bright, extraordinary, full)
5
outrageous(adjective, excessive, expensive, steep, high-priced)
5
prized(adjective, fancy, important, useful, valuable)
5
splendid(adjective, easy, fancy, full, luxury)
4
opulent(adjective, easy, fancy, luxury, elegant)
4
posh(adjective, fancy, bright, luxury, elegant)
3
costive(adjective, expensive, high-priced, pricey, pricely)
3
dearly-won
3
elegant(adjective, smart, bright, full, luxury)
3
estimable(adjective, important, useful, expensive, scarce)
3
excessive(adjective, fancy, extraordinary, extreme, high)
3
high-class(adjective, great, top, valuable, splendid)
3
high-ticket(adjective, expensive, high-priced, pricey, pricely)
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APASmart Define. (2015). costly thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/costly/thesaurus/synonyms
ChicagoSmart Define. 2015. "costly thesaurus" https://smartdefine.org/costly/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, costly thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/costly/thesaurus/synonyms>.
MLASmart Define. "costly thesaurus" 24 December 2015. Web. 22 September 2026. <https://smartdefine.org/costly/thesaurus/synonyms>