1. Antecedent
2. Preceding
3. Precedent
4. Prehistoric
5. Anterior
6. Bygone
7. Foregone
8. Olden
9. Old-time
10. Prior
11. Former
12. Precedential
13. Pre-existent
14. Pre-existing
15. Previous
16. Antediluvian
17. Antiquated
18. Archaic
19. Bygone
20. Erstwhile
21. Old-fashioned
22. Outdated
23. Outmoded
24. Predecessor
25. Prehistoric
26. Primitive
27. Retro
28. Retrogressive
29. Vintage
30. Yesterday
When searching for alternate words for the term “past”, there are many ideas to consider. Synonyms such as antecedent, preceding, precedent, prehistoric, anterior, bygone, foregone, olden, old-time, prior, former, and precendential are all excellent choices. Other words for the term “past” include pre-existent, pre-existing, previous, antediluvian, antiquated, archaic, bygone, erstwhile, old-fashioned, outdated, outmoded, predecessor, prehistoric, primitive, retro, retrogressive, vintage, and yesterday. These words are all excellent options when looking for the best synonyms for the term “past”.