55 entries under adjective topic. ×
| hopeless | |
| inadequate | |
| inapt | |
| inept | |
| insipid | |
| light | |
| mawkish | |
| pathetic | |
| shiftless | |
| tasteless | |
| thin | |
| unable | |
| watery | |
| inefficacious | |
| null(ineffectual, valueless) |
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| APA | Smart Define. (2015). effective thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/effective/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "effective thesaurus" https://smartdefine.org/effective/thesaurus/antonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, effective thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/effective/thesaurus/antonyms>. |
| MLA | Smart Define. "effective thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/effective/thesaurus/antonyms> |