- Definitions|2
- Thesaurus|308
- Abbreviations|0
9 entries under the past topic. ×
| once | |
| yet | |
| already | |
| before now(expression, idiom) | |
| ere now(expression, idiom) | |
| ex post facto(expression, idiom) | |
| from time immemorial(expression, idiom) | |
| heretofore | |
| hitherto |
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| APA | Smart Define. (2016). prehistoric thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/prehistoric/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "prehistoric thesaurus" https://smartdefine.org/prehistoric/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2016, prehistoric thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/prehistoric/thesaurus/synonyms>. |
| MLA | Smart Define. "prehistoric thesaurus" 29 February 2016. Web. 30 September 2026. <https://smartdefine.org/prehistoric/thesaurus/synonyms> |