74 entries under vital topic. ×
| first(adjective, significant, original, serious, essential) | |
| needed(adjective, essential, critical, fundamental) | |
| constitutional(adjective, significant, original, basic) | |
| deep(adjective, tough, severe, intense, significant) | |
| elementary(adjective, significant, original, basic) | |
| grievous(adjective, great, tough, severe, heavy) | |
| intrinsic(adjective, significant, original, substantial, serious) | |
| obligatory(adjective, essential, necessary) | |
| prerequisite(adjective, essential, critical, fundamental) | |
| radical(adjective, great, significant, original, serious) | |
| rudimentary(adjective, significant, original, basic) | |
| underlying(adjective, significant, original, essential, basic) | |
| clamant(adjective, serious, essential, critical) | |
| clamorous(adjective, serious, essential, critical) |
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| APA | Smart Define. (2016). important thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/important/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "important thesaurus" https://smartdefine.org/important/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, important thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/important/thesaurus/synonyms>. |
| MLA | Smart Define. "important thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/important/thesaurus/synonyms> |