69 entries under important topic. ×
| essential(adjective, importance, significant, original) | |
| fundamental(adjective, significant, original, essential) | |
| prime(importance, job, significant, original) | |
| basic(adjective, base, significant, last) | |
| original(noun, adjective, cause, new) | |
| primary(adjective, cause, base, importance) | |
| organic(adjective, significant, original, essential) | |
| basal(adjective, base, significant, last) | |
| underlying(adjective, base, significant, last) | |
| cardinal(adjective, importance, significant, original) | |
| constitutional(adjective, significant, original, essential) | |
| primitive(adjective, cause, significant, original) | |
| great(job, amazing, grand, serious) | |
| intrinsic(adjective, significant, original, essential) | |
| principal(adjective, great, importance, significant) | |
| vital(adjective, great, importance, significant) | |
| central(adjective, significant, original, essential) | |
| chief(importance, significant, essential, fundamental) | |
| elementary(adjective, significant, original, essential) | |
| foundational(adjective, base, significant, last) |
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| APA | Smart Define. (2016). radical thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/radical/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "radical thesaurus" https://smartdefine.org/radical/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, radical thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/radical/thesaurus/synonyms>. |
| MLA | Smart Define. "radical thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/radical/thesaurus/synonyms> |