That's not right.

Meaning

That's unfair, unjust, or immoral.

Examples

• John: They're blaming me for the mistake, even though it wasn't my fault.
• Alice: That's terrible! <b>That's not right</b>. You should defend yourself.
• John: I tried to explain, but they won't listen.
• Alice: This isn't fair to you; this whole situation; <b>that's not right</b> at all! You should file a formal complaint.