- Definitions|1
- Thesaurus|441
- Abbreviations|0
| genuine(authentic, first, previous, initial) | |
| in front | |
| inchoate(beginning, opening, original, first, primary) | |
| inductive | |
| initiative(beginning, opening, original, first, primary) | |
| major | |
| matutinal | |
| most aged(expression, adjective, eldest) | |
| most early(expression, idiom) | |
| nascent(beginning, opening, original, first, primary) | |
| olden | |
| pilot | |
| preceding | |
| precursory | |
| prefatory | |
| preliminary(opening, original, first, early, initial) | |
| preparatory | |
| preparing | |
| previous(first, initial) | |
| primogenital(adjective, eldest) |
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| APA | Smart Define. (2016). earliest thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/earliest/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "earliest thesaurus" https://smartdefine.org/earliest/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, earliest thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/earliest/thesaurus/synonyms>. |
| MLA | Smart Define. "earliest thesaurus" 13 March 2016. Web. 23 September 2026. <https://smartdefine.org/earliest/thesaurus/synonyms> |