At one's mercy" is a phrase that describes a situation where a person is completely vulnerable and powerless. The word "mercy" implies compassion, leniency, and forgiveness. Therefore, antonyms for this phrase would reflect a situation where a person is in control, has power, or is not vulnerable. Some antonyms for "at one's mercy" could be "having the upper hand," "in control," "invincible," or "unassailable." These words convey a sense of strength, control, and authority, which is the opposite of being at someone else's mercy. It is essential to know antonyms of a word as it provides us with the right usage of words in the appropriate context.
