- Definitions|0
- Thesaurus|302
- Abbreviations|0
| unoriginal(adjective, dull, set, flat, silly) | |
| antique | |
| extinct | |
| moth-eaten(adjective, dull, flat, silly, commonplace) | |
| musty(adjective, dull, flat, silly, commonplace) | |
| obsolescent | |
| out-dated | |
| out-of-date | |
| threadbare(adjective, dull, flat, commonplace, stale) | |
| unfashionable(adjective, plain, dead, out, square) | |
| antediluvian | |
| bromidic(adjective, dull, set, flat, silly) | |
| conventional(adjective, characteristic, common, stupid, ordinary) | |
| cut-and-dried(adjective, fixed, settled, finished, decided) | |
| date | |
| everyday(adjective, characteristic, dull, plain, common) | |
| familiar(adjective, set, common, ordinary, usual) | |
| ordinary(adjective, characteristic, dull, set, flat) | |
| outdated(adjective, plain, square, old, stale) | |
| set(dull, flat, silly, ordinary, commonplace) |
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| APA | Smart Define. (2015). old hat thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/old_hat/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "old hat thesaurus" https://smartdefine.org/old_hat/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, old hat thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/old_hat/thesaurus/synonyms>. |
| MLA | Smart Define. "old hat thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/old_hat/thesaurus/synonyms> |