59 entries under essential topic. ×
| compelling(adjective, significant, basic, vital) | |
| compulsory(adjective, significant, basic, vital) | |
| de rigueur(expression, adjective, significant, basic) | |
| decisive(adjective, significant, basic, vital) | |
| exigent(adjective, significant, basic, vital) | |
| expedient(adjective, significant, basic, vital) | |
| imperative(adjective, significant, basic, vital) | |
| incumbent on(expression, adjective, significant, basic) | |
| mandatory(adjective, significant, basic, vital) | |
| momentous(adjective, significant, basic, vital) | |
| necessitous(required, needed) | |
| needed(adjective, significant, basic, vital) | |
| obligatory(adjective, significant, basic, vital) | |
| prerequisite(adjective, significant, basic, vital) | |
| pressing(adjective, significant, basic, vital) | |
| specified(adjective, significant, basic, vital) | |
| unavoidable(adjective, significant, basic, vital) | |
| urgent(adjective, significant, basic, vital) | |
| wanted(adjective, significant, basic, vital) |
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| APA | Smart Define. (2015). elementary thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/elementary/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "elementary thesaurus" https://smartdefine.org/elementary/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, elementary thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/elementary/thesaurus/synonyms>. |
| MLA | Smart Define. "elementary thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/elementary/thesaurus/synonyms> |