senior Synonyms

older aged elder elderly ruling uppermost upstream veteran highest higher up golden ager senior citizen geezer greybeard methuselah ageing upper undergraduate ultimo seasoned sen senescent senile seniority septuagenarian sir soph sophomore student subofficer superannuated superior supreme baby boomer old-timer ancients on in years mzee grey-haired high-level old age pensioner sr. tenth grade fourth year top-level twelfth grade twelfth grader higher-level higher-ranking long in the tooth