- Definitions|1
- Thesaurus|120
- Abbreviations|0
| innovative | |
| inventive | |
| meat and potatoes(expression, idiom, important, significant, vital) | |
| opening(adjective, authentic, first, previous, initial) | |
| originating | |
| pioneer(adjective, authentic, first, previous, initial) | |
| precursory(inchoate, originating) | |
| prelusive(inchoate, originating) | |
| preparative(inchoate, originating) | |
| previous(first, initial) | |
| proemial(inchoate, originating) | |
| prolegomenous(inchoate, originating) | |
| prototypal(adjective, authentic, first, previous, initial) | |
| starting(adjective, authentic, first, previous, initial) | |
| unprecedented | |
| unusual |
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| APA | Smart Define. (2015). underived thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/underived/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "underived thesaurus" https://smartdefine.org/underived/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, underived thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/underived/thesaurus/synonyms>. |
| MLA | Smart Define. "underived thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/underived/thesaurus/synonyms> |