- Definitions|0
- Thesaurus|311
- Abbreviations|0
29 entries under unproductive topic. ×
| unprofitable(adjective, ineffective, ineffectual, impotent) | |
| useless(adjective, ineffective, ineffectual, impotent) | |
| weak(adjective, ineffective, ineffectual, impotent) | |
| worthless(adjective, ineffective, ineffectual, impotent) | |
| effete(adjective, ineffective, ineffectual, impotent) | |
| frail(adjective, ineffective, ineffectual, impotent) | |
| gutless(adjective, ineffective, ineffectual, impotent) | |
| infirm(adjective, ineffective, ineffectual, impotent) | |
| nerveless(adjective, ineffective, ineffectual, impotent) |
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| APA | Smart Define. (2016). impactful thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/impactful/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "impactful thesaurus" https://smartdefine.org/impactful/thesaurus/antonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2016, impactful thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/impactful/thesaurus/antonyms>. |
| MLA | Smart Define. "impactful thesaurus" 12 February 2016. Web. 1 October 2026. <https://smartdefine.org/impactful/thesaurus/antonyms> |