387 entries under adjective topic. ×
| foundational(base, important, significant, last) | |
| iconoclastic(skeptical, unorthodox, extremes) | |
| irrational(severe, harsh, exceptional, ill) | |
| keen(enthusiastic, job, ill, sick) | |
| out-and-out | |
| primordial(cause, important, significant, original) | |
| profound(basic, fundamental) | |
| renegade(noun, person, reactionary, insurgent) | |
| unconventional(moderate, severe, harsh, new) | |
| wide(open, large, tolerant, easygoing) | |
| all-embracing | |
| beginning(noun, new, hot, natural) | |
| bottom(important, significant, original, essential) | |
| deep(spread, unusual, fantastic, original) | |
| elemental(important, significant, original, essential) | |
| far-out(concern, slang, edge, unconventional) | |
| groundbreaking(new, original, advanced, pioneering) | |
| left(noun, moderate, tolerant, modern) | |
| left-wing | |
| maverick(noun, person, beat, original) |
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| APA | Smart Define. (2016). radical thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/radical/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "radical thesaurus" https://smartdefine.org/radical/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, radical thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/radical/thesaurus/synonyms>. |
| MLA | Smart Define. "radical thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/radical/thesaurus/synonyms> |