98 entries under adjective topic. ×
| in demand(expression, idiom, requirement) | |
| incumbent on(expression, significant, essential, basic) | |
| life-and-death | |
| life-or-death(important, essential, critical, basic) | |
| main | |
| material | |
| momentous(important, significant, serious, essential) | |
| official | |
| paramount(important, significant, serious, essential) | |
| primary | |
| proviso | |
| quintessential(significant, essential, basic, vital) | |
| rented | |
| right(correct, proper, flawless, faultless) | |
| set(obvious, obligatory, compulsory, inevitable) | |
| significant(important, essential, critical, basic) | |
| specified(significant, essential, basic, vital) | |
| textbook(correct, proper, suitable, flawless) | |
| worthwhile(necessary, wanted, needed) | |
| all-important(significant, essential, basic, vital) |
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| APA | Smart Define. (2015). required thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/required/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "required thesaurus" https://smartdefine.org/required/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, required thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/required/thesaurus/synonyms>. |
| MLA | Smart Define. "required thesaurus" 3 November 2015. Web. 24 September 2026. <https://smartdefine.org/required/thesaurus/synonyms> |