- Definitions|0
- Thesaurus|40
- Abbreviations|1
8 entries under radical topic. ×
| advanced(progressive, avant-garde, futuristic) | |
| ahead of its time(expression, idiom, progressive, avant-garde) | |
| cutting-edge(progressive, in, renewed, avant-garde) | |
| leading-edge(progressive, in, renewed, avant-garde) | |
| new-fashioned(progressive, in, renewed, trendsetting) | |
| nontraditional(progressive, avant-garde, futuristic) | |
| today(progressive, in, renewed, avant-garde) | |
| revolutionary(progressive, avant-garde, futuristic) |
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| APA | Smart Define. (2011). twenty-first century thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/twenty-first_century/thesaurus/synonyms |
| Chicago | Smart Define. 2011. "twenty-first century thesaurus" https://smartdefine.org/twenty-first_century/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2011, twenty-first century thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/twenty-first_century/thesaurus/synonyms>. |
| MLA | Smart Define. "twenty-first century thesaurus" 24 May 2011. Web. 1 October 2026. <https://smartdefine.org/twenty-first_century/thesaurus/synonyms> |