79 entries under wasteful topic. ×

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garish(adjective, excessive, expensive, steep, high-priced)
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gaudy(adjective, excessive, expensive, steep, high-priced)
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grandiose(adjective, excessive, expensive, steep, high-priced)
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half-baked(incompetent, unproductive, imprudent, misguided)
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implausible(adjective, excessive, expensive, steep, high-priced)
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improficient(incompetent, unproductive)
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incapable(incompetent, unproductive)
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incompetent
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indulgent(adjective, excessive, expensive, steep, high-priced)
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ineffective(incompetent, unproductive)
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ineffectual(incompetent, unproductive)
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inefficacious(incompetent, unproductive)
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inept(foolish, incompetent, rash, risky)
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inexpert(incompetent, unproductive)
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ludicrous(adjective, excessive, expensive, steep, high-priced)
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nonsensical(adjective, excessive, expensive, steep, high-priced)
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not cut out for(expression, idiom, incompetent, unproductive)
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ornate(adjective, excessive, expensive, steep, high-priced)
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ostentatious(adjective, excessive, expensive, steep, high-priced)
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outrageous(adjective, excessive, expensive, steep, high-priced)
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APASmart Define. (2015). improvident thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/improvident/thesaurus/synonyms
ChicagoSmart Define. 2015. "improvident thesaurus" https://smartdefine.org/improvident/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, improvident thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/improvident/thesaurus/synonyms>.
MLASmart Define. "improvident thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/improvident/thesaurus/synonyms>