Verity : Is an important principle or fact that is always true.
For example: One of the eternal verities of life.
The eternal verities of life.
She has spent her life in a search for eternal/scientific/universal verities.
in simple words: superior authority has a perception that his subordinate is a incompetent person. This is never-spoken by senior authority. Subordinate doesnot want his superior to make this statement. Which is more disturbing. So he want to keep it is as status quo.
An unspoken understanding. They had tacit agreement not to raise the subject. If you provide the whole sentence, it will make it easier to help you express your meaning.