- Definitions|2
- Thesaurus|503
- Abbreviations|0
37 entries under noun topic. ×
| folly | |
| frivolity | |
| frivolousness | |
| futility | |
| giddiness | |
| idleness | |
| ignitor | |
| ill repute(expression, regard, unimportance, worthiness) | |
| illumination | |
| immateriality | |
| indifference | |
| levity | |
| nimbleness | |
| trifle | |
| trivia | |
| unimportance | |
| vanity |
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| APA | Smart Define. (2015). weightiness thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/weightiness/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "weightiness thesaurus" https://smartdefine.org/weightiness/thesaurus/antonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2015, weightiness thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/weightiness/thesaurus/antonyms>. |
| MLA | Smart Define. "weightiness thesaurus" 10 April 2015. Web. 1 October 2026. <https://smartdefine.org/weightiness/thesaurus/antonyms> |