THESAURUS
senior citizen
Father Time, Methuselah, Nestor, Old Paar, ancient, centenarian, dotard, elder, gaffer, geezer, golden-ager, gramps, grandfather, grandsire, graybeard, nonagenarian, octogenarian, old chap, old codger, old dog, old duffer, old geezer, old gent, old gentleman, old man, old party, old-timer, older, oldster, pantaloon, patriarch, pensioner, presbyter, senior, septuagenarian, sexagenarian, the quiet-voiced elders, venerable sir, veteran