21 entries under adjective topic. ×
| essential | |
| basic | |
| primary | |
| central | |
| constitutional | |
| crucial | |
| determinative | |
| elemental | |
| elementary | |
| indispensable | |
| inherent | |
| innate | |
| intrinsic | |
| main | |
| natural | |
| obligatory | |
| principal | |
| serious | |
| significant | |
| substantive |
For more, visit
Option on
Power Thesaurus
| APA | Smart Define. (2016). option thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/option/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "option thesaurus" https://smartdefine.org/option/thesaurus/antonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, option thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/option/thesaurus/antonyms>. |
| MLA | Smart Define. "option thesaurus" 9 March 2016. Web. 24 September 2026. <https://smartdefine.org/option/thesaurus/antonyms> |