- Definitions|2
- Thesaurus|308
- Abbreviations|0
34 entries under adjective topic. ×
| ancient(original, old, past, primitive) | |
| old(original, past, primitive, early) | |
| antediluvian(antiquated, before, oldness) | |
| primeval(original, fixed, primitive, early) | |
| antique(old, traditional, early, antiquated) | |
| archaic(old, early, antique, antiquated) | |
| primitive(original, old, past, ancient) | |
| primordial(original, primitive, early, antique) | |
| antiquated(old, early, antique, before) | |
| early | |
| prehistorical | |
| earliest | |
| old-fashioned(old, traditional, early, antique) | |
| primal(primary, primeval) | |
| Noachian | |
| aboriginal | |
| fossil | |
| obsolete(noun, old, traditional, early) | |
| olden | |
| pristine |
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| APA | Smart Define. (2016). prehistoric thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/prehistoric/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "prehistoric thesaurus" https://smartdefine.org/prehistoric/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, prehistoric thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/prehistoric/thesaurus/synonyms>. |
| MLA | Smart Define. "prehistoric thesaurus" 29 February 2016. Web. 25 September 2026. <https://smartdefine.org/prehistoric/thesaurus/synonyms> |