57 entries under essential topic. ×
| meaningful(important, critical, fundamental, decisive) | |
| meat-and-potatoes(important, critical, basic, fundamental) | |
| momentous(adjective, important, significant, serious) | |
| name(important, critical, basic, fundamental) | |
| name-of-the-game(important, critical, basic, fundamental) | |
| nitty-gritty(important, critical, basic, fundamental) | |
| paramount(adjective, important, significant, serious) | |
| quintessential(adjective, significant, basic, vital) | |
| significant(adjective, important, critical, basic) | |
| specified(adjective, significant, basic, vital) | |
| underlined(important, critical, basic, fundamental) | |
| necessitous(important, capital, vital, fundamental) | |
| all-important(adjective, significant, basic, vital) | |
| coal and ice(expression, idiom, important, critical) | |
| name of game(expression, adjective, idiom, significant) | |
| name of the game(expression, idiom, important, critical) | |
| prime(adjective, significant, basic, vital) |
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| APA | Smart Define. (2015). required thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/required/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "required thesaurus" https://smartdefine.org/required/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, required thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/required/thesaurus/synonyms>. |
| MLA | Smart Define. "required thesaurus" 3 November 2015. Web. 23 September 2026. <https://smartdefine.org/required/thesaurus/synonyms> |