68 entries under steep topic. ×

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exorbitant(adjective, hard, difficult, excessive, expensive)
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expensive(adjective, excessive, high-priced, costly)
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extortionate(adjective, excessive, expensive, high-priced)
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fancy(adjective, excessive, expensive, high-priced)
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flamboyant(adjective, excessive, expensive, high-priced)
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flashy(adjective, excessive, expensive, high-priced)
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garish(adjective, excessive, expensive, high-priced)
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gaudy(adjective, excessive, expensive, high-priced)
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grandiose(adjective, excessive, expensive, high-priced)
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high(adjective, expensive, high-priced, costly)
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high-priced(adjective, expensive, costly, extortionate)
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highway robbery(expression, adjective, expensive, high-priced)
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holdup(adjective, expensive, high-priced, costly)
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immoderate(adjective, excessive, expensive, high-priced)
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improvident(adjective, excessive, expensive, high-priced)
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imprudent(adjective, excessive, expensive, high-priced)
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indulgent(adjective, excessive, expensive, high-priced)
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inordinate(adjective, excessive, expensive, high-priced)
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invaluable(adjective, expensive, high-priced, costly)
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lavish(adjective, excessive, expensive, high-priced)
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APASmart Define. (2015). implausible thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/implausible/thesaurus/synonyms
ChicagoSmart Define. 2015. "implausible thesaurus" https://smartdefine.org/implausible/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, implausible thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/implausible/thesaurus/synonyms>.
MLASmart Define. "implausible thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/implausible/thesaurus/synonyms>