2
out of fashion(expression, adjective, idiom)
2
overworked
2
passe
2
pedestrian(adjective, dull, set, flat, silly)
2
square(adjective, stupid, ordinary, commonplace, bland)
2
timeworn(adjective, dull, flat, commonplace, stale)
2
well-known(adjective, simple, plain, common, usual)
1
accustomed(adjective, plain, common, usual, intimate)
1
agreed(adjective, settled, finished, decided)
1
archetypal
1
archetypical
1
average
1
back number
1
bathetic(dull, flat, silly, commonplace, stale)
1
bewhiskered
1
blah(adjective, stupid, ordinary, commonplace, bland)
1
bland(adjective, dull, stupid, ordinary, boring)
1
bygone(adjective, plain, dead, out, shabby)
1
characteristic
1
classic
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APASmart Define. (2015). old hat thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/old_hat/thesaurus/synonyms
ChicagoSmart Define. 2015. "old hat thesaurus" https://smartdefine.org/old_hat/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, old hat thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/old_hat/thesaurus/synonyms>.
MLASmart Define. "old hat thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/old_hat/thesaurus/synonyms>