81 entries under steep topic. ×

2
out of sight(expression, adjective, idiom, strange, crazy)
2
profligate(adjective, unreasonable, extravagant, extra, excessive)
2
rich(adjective, strong, hard, extraordinary, exceptional)
2
uneconomical(adjective, expensive, high-priced, costly)
2
upscale(adjective, expensive, high-priced, costly)
2
valuable(adjective, exceptional, expensive, scarce)
2
wasteful(adjective, unreasonable, extravagant, ridiculous, excessive)
1
absonant(adjective, unreasonable, improper, stiff, extravagant)
1
exacting(adjective, harsh, cruel, unreasonable, extravagant)
1
fanciful(adjective, strange, fantastic, ugly, gross)
1
flamboyant(adjective, strange, fantastic, ugly, gross)
1
foolish(adjective, strange, stupid, crazy, unreasonable)
1
highway robbery(expression, adjective, unreasonable, extravagant, ridiculous)
1
improvident(adjective, excessive, expensive, high-priced)
1
ludicrous(adjective, strange, stupid, crazy, unreasonable)
1
overboard(adjective, enthusiastic, unreasonable, ill, sick)
1
posh(adjective, unreasonable, improper, stiff, extravagant)
1
reckless(adjective, excessive, expensive, high-priced)
1
silly(adjective, stupid, unreasonable, absurd, excessive)
1
sky-high(adjective, unreasonable, high, extravagant, extra)
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APASmart Define. (2016). extreme thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/extreme/thesaurus/synonyms
ChicagoSmart Define. 2016. "extreme thesaurus" https://smartdefine.org/extreme/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, extreme thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/extreme/thesaurus/synonyms>.
MLASmart Define. "extreme thesaurus" 11 March 2016. Web. 26 September 2026. <https://smartdefine.org/extreme/thesaurus/synonyms>