I. adjective
1.
persisting from the distant past
an ancient monument
Synonyms: aged, age-old, antediluvian, antique, hoary, Noachian, old, timeworn, venerable; compare obsolete
Related Word: primal, primeval, primordial, pristine; forgotten, immemorial, remote, traditional; ageless, dateless
Idioms: old as time, older than God ( or the hills), out of the dim past
Contrasted words: current, fresh, new, novel, prevailing, up-to-date
Antonyms: modern
2.
Synonyms: aged 1, elderly, old, olden
Related Word: doddering, doting, fading, sinking, waning, wasting
Idioms: old as Methuselah ( or the hills)
II. noun
Synonyms: oldster , elder, golden-ager, old-timer, senior, senior citizen