- Definitions|2
- Thesaurus|729
- Abbreviations|0
52 entries under fundamental topic. ×
| nitty-gritty(important, essential, critical, basic) | |
| pressing(adjective, significant, essential, basic, vital) | |
| principal(adjective, important, significant, capital, essential) | |
| quintessential(adjective, significant, essential, basic, vital) | |
| significant(adjective, important, essential, critical, basic) | |
| specified(adjective, significant, essential, basic, vital) | |
| unavoidable(adjective, set, significant, essential, basic) | |
| underlined(important, essential, critical, basic) | |
| bottom line(expression, decisive, imperative) | |
| elementary(adjective, significant, essential, basic, vital) | |
| main(adjective, important, capital, essential, vital) | |
| prime(adjective, significant, essential, basic, vital) |
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| APA | Smart Define. (2015). needed thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/needed/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "needed thesaurus" https://smartdefine.org/needed/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, needed thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/needed/thesaurus/synonyms>. |
| MLA | Smart Define. "needed thesaurus" 13 April 2015. Web. 24 September 2026. <https://smartdefine.org/needed/thesaurus/synonyms> |