elder statesman
noun [ C ] uk/ˌel.də ˈsteɪt.smən/ us/ˌel.dɚ ˈsteɪt.smən/
（常指不再担任实际工作而起顾问作用的）元老，资深前辈，德高望重的人
a respected leader, often one who no longer has an active job, who is thought of as having good advice to give
He is one of the medical profession's elder statesmen. 他是医学界的一位元老。