- Definitions|1
- Thesaurus|427
- Abbreviations|0
| inability(noun, weakness, dullness) | |
| inactivity(noun, weakness, dullness) | |
| inadequacy(noun, beginning) | |
| incompetence(noun, weakness, dullness) | |
| indifference(noun, beginning) | |
| ineffectiveness(noun, beginning) | |
| insignificance(noun, ignorance) | |
| invalidity(noun, beginning) | |
| laughableness | |
| laziness(noun, weakness, dullness) | |
| lethargy(noun, weakness, dullness) | |
| levity | |
| lump(noun, weakness, dullness) | |
| marsh | |
| marshland | |
| meaninglessness(noun, disregard) | |
| modesty(noun, plainness) | |
| nubbiness | |
| obscenity | |
| ordinariness |
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| APA | Smart Define. (2015). impressiveness thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/impressiveness/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "impressiveness thesaurus" https://smartdefine.org/impressiveness/thesaurus/antonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, impressiveness thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/impressiveness/thesaurus/antonyms>. |
| MLA | Smart Define. "impressiveness thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/impressiveness/thesaurus/antonyms> |