ㄧㄢˊyánㄅㄨˋㄐㄧㄣˋjìnˋ

  1. 言語無法所有心意表達出來易經·繫辭》:書不盡言言不盡意。」書信結尾表情不盡··》:菩薩奉上挽回春色不盡言不盡意。」不宣

(conventional letter ending)​ words cannot fully express what is in my heart (idiom)​