95 entries under past topic. ×
| aboriginal(last, original, primitive, venerable) | |
| age-old(last, original, primitive, venerable) | |
| ancient history(expression, adjective, late, old) | |
| antediluvian(last, original, primitive, venerable) | |
| antiquated(adjective, last, original, venerable) | |
| archaic(last, original, venerable, outdated) | |
| behind one(expression, adjective, late, old) | |
| but once(expression, adjective, adverb, then) | |
| bypast(adjective, late, old, previous) | |
| crumbling(last, original, traditional, venerable) | |
| dated(last, original, venerable, outdated) | |
| decayed(last, original, traditional, venerable) | |
| done(last, original, traditional, venerable) | |
| ex-(adjective, late, old, previous) | |
| foregoing(adjective, late, old, previous) | |
| gone-by(adjective, late, old, previous) | |
| good old days(expression, idiom, late, old) | |
| hackneyed(last, original, venerable, outdated) | |
| in the old days(expression, adjective, idiom, adverb) | |
| in the olden days(expression, adjective, idiom, adverb, late) |
For more, visit
Once on
Power Thesaurus
| APA | Smart Define. (2016). once thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/once/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "once thesaurus" https://smartdefine.org/once/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, once thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/once/thesaurus/synonyms>. |
| MLA | Smart Define. "once thesaurus" 30 March 2016. Web. 27 September 2026. <https://smartdefine.org/once/thesaurus/synonyms> |