C2 adjective /ˌsuː.pər.ɪˈrɑː.ɡə.tɔːr.i/
supererogatory
過剰
Meaning
Going beyond what is required or expected; more than necessary.
Example
His donation was supererogatory, far beyond what anyone had asked for.
彼の寄付は過剰で、誰もが求めていた以上のものでした。