senior

1 one who is older than another since the man next door is my senior by a number of years, I always address him as “Mr. Barton” Synonyms elder Related Words ancestor, forerunner, predecessor Near Antonyms contemporary, peer; descendant (also descendent), successor Antonyms junior

2 one who is above another in rank, station, or office the young attorney benefited from the mentorship of one of his seniors at the firm Synonyms better, elder, superiorRelated Words boss, chief, head, leader, masterNear Antonyms assistant, deputyAntonyms inferior, subordinate, underling

3 the senior member of a group when he retires, she will be the senior on the faculty Synonyms doyen, elder, elder statesman, éminence grise, nestor, deanRelated Words better, superior; old hand, old-timer, vet, veteranNear Antonyms doyenne; inferior, subordinate, underling; beginner, colt, fledgling, freshman, greenhorn, neophyte, newbie, newcomer, novice, recruit, rookie, tenderfoot, tyroAntonyms baby, junior

4 a person of advanced years weekday movie matinees are often popular with seniors Synonyms ancient, elder, geriatric, golden-ager, oldster, old-timer, senior citizenRelated Words gaffer, graybeard, patriarch, whitebeard; beldam (or beldame), dowager, grandam (or grandame); adult, grown-up; dotardNear Antonyms adolescent, minor; child, cub, juvenile, kid, kiddie (also kiddy)Antonyms youngster, youth