Antonyms for the phrase "beg for mercy" could include "showing resilience," "standing firm," or "demonstrating strength." Instead of begging for mercy, one may refuse to back down or show any signs of weakness, maintaining their dignity and integrity in the face of adversity. Synonyms could include "standing tall," "taking a stand," or "showing fortitude." While begging for mercy may be seen as a sign of defeat or submission, some individuals may choose to face their challenges with bravery and courage, refusing to give in to fear or intimidation.