- Definitions|3
- Thesaurus|2.9k
- Abbreviations|0
58 entries under adjective topic. ×
| imperious | |
| indispensable | |
| influential | |
| inherent | |
| intrinsic | |
| memorable | |
| ominous | |
| peremptory | |
| pivotal | |
| ponderous | |
| primary | |
| purposeful | |
| reliable | |
| responsible | |
| rigorous | |
| trenchant(sarcastic, scathing) | |
| urgent | |
| vital |
For more, visit
Frivolous on
Power Thesaurus
| APA | Smart Define. (2015). frivolous thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/frivolous/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "frivolous thesaurus" https://smartdefine.org/frivolous/thesaurus/antonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, frivolous thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/frivolous/thesaurus/antonyms>. |
| MLA | Smart Define. "frivolous thesaurus" 13 April 2015. Web. 29 September 2026. <https://smartdefine.org/frivolous/thesaurus/antonyms> |