silence means consent
If you do not voice your objection to something, then it is assumed that you support it. A: "Why did you think I would agree to punishing a student so harshly?" B: "Well, you didn't say anything when we originally discussed this plan! Silence means consent." Make sure to speak up when you disagree with something, because, for many people, silence means consent.
Farlex Dictionary of Idioms. © 2024 Farlex, Inc, all rights reserved.