95 entries under idiom topic. ×

9
out of date(expression, adjective)
4
along in years(expression, adjective, age, enervated)
3
advanced in years(expression, adjective, age)
3
over the hill(expression, adjective, gray, age)
2
advanced in life(expression, age)
2
not born yesterday(expression, skilled, experienced, seasoned)
2
not new
2
of the old school(expression, odd, skilled, experienced)
2
old fashioned
2
past one's prime(expression, adjective, age)
1
at one time(expression, adverb, late, earlier)
1
behind the times(expression, odd, primitive, unfashionable)
1
down memory lane(expression, adjective, late, past)
1
elderly person
1
from way back(expression, adjective, skilled, experienced)
1
good old days(expression, adjective, late, past)
1
gray with age
1
hardly born yesterday
1
having something on the ball(expression, familiar, sophisticated, knowledgeable)
1
in a bad way(expression, shabby, tacky, dingy)
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APASmart Define. (2016). old thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/old/thesaurus/synonyms
ChicagoSmart Define. 2016. "old thesaurus" https://smartdefine.org/old/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, old thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/old/thesaurus/synonyms>.
MLASmart Define. "old thesaurus" 29 February 2016. Web. 24 September 2026. <https://smartdefine.org/old/thesaurus/synonyms>