83 entries under essential topic. ×
| necessary(adjective, important, significant, original) | |
| crucial(adjective, important, significant, original) | |
| indispensable(adjective, important, significant, original) | |
| radical(adjective, importance, important, significant, original) | |
| overruling(adjective, importance, important, serious) | |
| preeminent(adjective, important, outstanding, prominent) | |
| significant(adjective, important, original, critical) | |
| elementary(adjective, important, head, significant, beginning) | |
| rudimentary(adjective, important, head, significant, beginning) | |
| basal(adjective, lead, important, head, significant) | |
| constitutive(adjective, important, critical, basic) | |
| critical(adjective, important, original, basic) | |
| elemental(adjective, important, significant, original) | |
| meaningful(adjective, important, substantial, serious) | |
| needful(adjective, important, significant, capital) | |
| number one(expression, adjective, quality, lead, superior) | |
| outstanding(adjective, important, significant, prominent) | |
| primordial(adjective, important, head, significant, beginning) | |
| requisite(adjective, important, significant, original) | |
| bottom-line(adjective, important, significant, original) |
For more, visit
Cardinal on
Power Thesaurus
| APA | Smart Define. (2015). cardinal thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/cardinal/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "cardinal thesaurus" https://smartdefine.org/cardinal/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, cardinal thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/cardinal/thesaurus/synonyms>. |
| MLA | Smart Define. "cardinal thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/cardinal/thesaurus/synonyms> |