Synonyms|509Antonyms|103|Broader|4Narrower|8Related|587

25 entries under adjective topic. ×

0
inadequate
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inept
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null(ineffectual, valueless)
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poor
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void
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APASmart Define. (2015). effectual thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/effectual/thesaurus/antonyms
ChicagoSmart Define. 2015. "effectual thesaurus" https://smartdefine.org/effectual/thesaurus/antonyms (accessed September 25, 2026).
HarvardSmart Define 2015, effectual thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/effectual/thesaurus/antonyms>.
MLASmart Define. "effectual thesaurus" 13 April 2015. Web. 25 September 2026. <https://smartdefine.org/effectual/thesaurus/antonyms>