ㄧㄢˊyánㄨㄞˋwàizhīˋ

  1. 沒有明說間接透露意思·鄭燮濰縣〉:間有一二不盡言外之意少少多多一節好處。」弦外之音意在言外

unspoken implication (idiom)​, the actual meaning of what was said
(expr. idiom.)​ implication tacite