be (as) old as the hills
to be very old
Thesaurus: synonyms and related words
Old or old-fashioned
- a thing of the past idiom
- age-old
- ageing
- aging
- ancient
- creaky
- fossilized
- frumpy
- fusty
- have had its/your day idiom
- hoary
- mumsy
- neanderthal
- out of date
- outdated
- outmoded
- outworn
- passé
- vintage
- went out with the ark idiom
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You can also find related words, phrases, and synonyms in the topics:
Describing people who are old