The antonyms for the phrase "being upheld" are words such as rejected, overturned, revoked, invalidated, disallowed, and nullified. To have something rejected means that it has been denied, dismissed, or refused. Overturned refers to a decision or action that has been reversed or annulled. Revoked means that a previously granted right or privilege has been taken away. Invalidated means that something was declared null and void, usually due to incompetence, fraud, or illegality. Disallowed signifies that something was prevented from happening or prohibited. Nullified means that something was rendered legally ineffectual or invalid.