noun
Refers to a director who holds a permanent or standing position on a board, as opposed to an ad-hoc or rotating director. Often used in the context of organizations like the UN Security Council (常任理事国).
彼は国連の常任理事国の代表を務めている。
He serves as the representative of a permanent member state of the United Nations.
常任理事は毎月の会議に出席しなければならない。
The executive director must attend the monthly meetings.
Compound of 常任 (permanent, standing) and 理事 (director).