no-go

(not comparable)Not functioning properly.

not functioning properly or in suitable condition for proceeding

(not comparable)Not to be entered.

They lived in a no-go part of the ghetto.

The noise and drunkenness made the area a no-go zone at night for families.

(not comparable)That should not go (i.e., enter or engage) if the size of the part being measured is properly achieved.

no-go gauge

This bore is no good: the no-go pin is flying right into the first half of it.