"Gives cat o'nine tails" is a phrase that refers to the act of punishing or inflicting physical harm on someone. However, there are several antonyms for this phrase, which convey the opposite meaning. Some of these antonyms include "shows mercy," "forgives," "pardons," "excuses," "redeems," "rehabilitates," and "reforms." These words suggest a more compassionate, forgiving, and empathetic approach towards others, rather than resorting to violence or harsh punishment. In contrast to "gives cat o'nine tails," these antonyms prioritize empathy, understanding, and kindness in dealing with others, which fosters healing, growth, and reconciliation.