renunciation

noun

1. 1

   the act of renouncing; sacrificing or giving up or surrendering (a possession or right or title or privilege etc.)

2. 2

   rejecting or disowning or disclaiming as invalid

   Congressional repudiation of the treaty that the President had negotiated

3. 3

   an act (spoken or written) declaring that something is surrendered or disowned

4. 4

   the state of having rejected your religious beliefs or your political party or a cause (often in favor of opposing beliefs or causes)