- Definitions|2
- Thesaurus|98
- Abbreviations|0
| portentous | |
| precursory(head, previous, higher, upper, earlier) | |
| above(head, previous, higher, upper, earlier) | |
| above-mentioned(head, previous, higher, upper, earlier) | |
| above-named(head, previous, higher, upper, earlier) | |
| aforeknown(head, previous, higher, upper, earlier) | |
| aforementioned(head, previous, higher, upper, earlier) | |
| aforesaid | |
| ahead of | |
| antecedent | |
| before | |
| erstwhile | |
| foreboding | |
| foregoing(previous, higher, upper, earlier, abovementioned) | |
| forerunning(head, previous, higher, upper, earlier) | |
| forewarning | |
| former(previous, higher, upper, earlier, abovementioned) | |
| forward | |
| front | |
| head |
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| APA | Smart Define. (2015). prodromal thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/prodromal/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "prodromal thesaurus" https://smartdefine.org/prodromal/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, prodromal thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/prodromal/thesaurus/synonyms>. |
| MLA | Smart Define. "prodromal thesaurus" 14 April 2015. Web. 20 September 2026. <https://smartdefine.org/prodromal/thesaurus/synonyms> |