unuttered

1. That is the unuttered matter that underlies the ritualistic argument over arms sales.
   有个不能说的事就是有个关于军售的观点。

adj

1. not made explicit
   1. the unexpressed terms of the agreement
   2. things left unsaid
   3. some kind of unspoken agreement
   4. his action is clear but his reason remains unstated

   Synonym:    unexpressedunsaidunstatedunverbalizedunverbalisedunvoicedunspoken