condone
To quietly accept bad behavior by not stopping it.
To condone means to accept or allow behavior you know is wrong, usually by not speaking up against it or not doing anything to stop it. When you condone something, you're giving it silent approval, even if you don't actively participate in it yourself.
Imagine a group of students teasing a classmate, and another student just stands there watching without saying anything. By staying quiet, that student is condoning the teasing. They might not be doing the teasing themselves, but their silence sends a message that the behavior is okay. Teachers often say, “I don't condone this in any form,” making it crystal clear they won't accept or overlook dishonest behavior.
Condoning is different from forgiving. When you forgive someone, you acknowledge they did something wrong but choose to let go of your anger about it. When you condone something, you're essentially acting like it wasn't wrong in the first place.
The word often appears in serious contexts. A principal might say she “cannot condone bullying,” or a coach might refuse to condone unsportsmanlike conduct. When someone says they don't condone an action, they're drawing a clear line: the behavior is unacceptable, and they won't pretend otherwise.