If your thoughts, wishes, or feelings are unspoken, you do not speak about them.
例句
His face was expressionless, but Alex felt the unspoken criticism...他面無表情，但亞歷克斯能感覺到他未明言的批評之意。The other unspoken fear here is of an outbreak of hooliganism.這其中另一個未言明的擔憂是足球流氓可能突然鬧事。
ADJ
（協議等）不成文的，默契的，默認的
When there is an unspoken agreement or understanding between people, their behaviour shows that they agree about something or understand it, even though they have never spoken about it.
例句
There had been an unspoken agreement between them that he would not call for her at Seymour House...他們之間曾經有過默契，那便是他不會到西摩屋去找她。Most designers share the unspoken belief that fashion is a valid form of visual art.絕大多數設計師都默認這樣一種觀點，即時裝是視覺藝術的一種有效形式。
英英詞典釋義
Adjective
1. expressed without speech; especially because words would be inappropriate or inadequate;
"a mute appeal""a silent curse""best grief is tongueless"- Emily Dickinson"the words stopped at her lips unsounded""unspoken grief""choking exasperation and wordless shame"- Thomas Wolfe
2. not made explicit;
"the unexpressed terms of the agreement""things left unsaid""some kind of unspoken agreement""his action is clear but his reason remains unstated"