- Definitions|3
- Thesaurus|2.9k
- Abbreviations|0
58 entries under adjective topic. ×
| prominent | |
| relevant | |
| worthwhile | |
| austere | |
| decisive | |
| heavy | |
| accurate | |
| appreciable | |
| appropriate | |
| authoritative | |
| commanding | |
| conclusive | |
| considerable | |
| constitutive | |
| deep(meaning, abstract) | |
| difficult | |
| drastic | |
| emphatic | |
| hard | |
| hefty |
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> |