73 entries under fundamental topic. ×
| needful(adjective, original, basic, hidden) | |
| nitty-gritty(adjective, original, basic, primary) | |
| nub(adjective, original, basic, primary) | |
| sublime(adjective, essential, supreme) | |
| surpassing(adjective, essential, supreme) | |
| topmost(adjective, essential, supreme) | |
| towering(adjective, essential, supreme) | |
| transcendent(adjective, essential, supreme) | |
| unequalable(adjective, essential, supreme) | |
| unmatchable(adjective, essential, supreme) | |
| unsurpassable(adjective, essential, supreme) | |
| rooter(basic, latent) | |
| veiled(adjective, original, basic, hidden) |
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| APA | Smart Define. (2016). radical thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/radical/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "radical thesaurus" https://smartdefine.org/radical/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2016, radical thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/radical/thesaurus/synonyms>. |
| MLA | Smart Define. "radical thesaurus" 29 March 2016. Web. 28 September 2026. <https://smartdefine.org/radical/thesaurus/synonyms> |