91 entries under original topic. ×
| primeval(adjective, order, beginning, origin) | |
| elementary(adjective, order, important, opening) | |
| eminent(adjective, importance, important, high) | |
| primitive(adjective, order, important, basic) | |
| aboriginal(adjective, order, beginning, existing) | |
| essential(adjective, important, significant, prominent) | |
| initiatory(adjective, beginning, opening, basic) | |
| initiative(adjective, beginning, opening, primary) | |
| major(adjective, top, superior, unusual, important) | |
| pristine(adjective, order, simple, clean, pure) | |
| former(adjective, order, time, past) | |
| pioneer(adjective, pronoun, order, start) | |
| advanced(adjective, lead, importance, sophisticated) | |
| antecedent(adjective, order, old, primary) | |
| preliminary(adjective, beginning, opening, basic) | |
| number one(noun, verb, expression, adjective, phrasal verb) | |
| headmost(adjective, order, top, lead, important) | |
| prototype(noun, example) | |
| authentic(adjective, previous, initial) | |
| central(adjective, top, important, significant) |
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| APA | Smart Define. (2016). first thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/first/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "first thesaurus" https://smartdefine.org/first/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, first thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/first/thesaurus/synonyms>. |
| MLA | Smart Define. "first thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/first/thesaurus/synonyms> |