1. （想法、愿望、感情）没有言明的，没有说出口的
If your thoughts, wishes, or feelings are unspoken, you do not speak about them.

2. （协议等）不成文的，默契的，默认的
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.