26 entries under natural topic. ×
| prime(adjective, material, important, significant) | |
| primitive(adjective, material, basic, living) | |
| principal(adjective, material, basic, living) | |
| structural(adjective, material, basic, living) | |
| vital(adjective, material, basic, living) | |
| biological(adjective, material, basic, living) |
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| APA | Smart Define. (2016). nuclear thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/nuclear/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "nuclear thesaurus" https://smartdefine.org/nuclear/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, nuclear thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/nuclear/thesaurus/synonyms>. |
| MLA | Smart Define. "nuclear thesaurus" 17 March 2016. Web. 27 September 2026. <https://smartdefine.org/nuclear/thesaurus/synonyms> |