The Oxford Thesaurus An A-Z Dictionary of Synonyms - ancient adj.

1) old, bygone, past, former, earlier, Literary olden: In ancient times there were very few books. 2) old, antique, antediluvian, primitive, prehistoric, primeval, primordial, Noachian, Literary Ogygian: In those ancient days man had only just come down from the trees. 3) old, old-fashioned, archaic, time-worn, aged, ageing, obsolescent, antiquated, elderly, venerable, grey, hoary, superannuated, obsolete, fossil, fossilized: We were accosted by an ancient crone at the mouth of the cave.