Antonyms for "called to task" might include praise, commendation, recognition, or appreciation. These words suggest a positive appraisal or acknowledgement of one's efforts or accomplishments, rather than a corrective or critical reaction. Another antonym might be "let off the hook," meaning that one is not held accountable or responsible for a mistake or misdeed. These opposite terms demonstrate the power of language to convey different shades of meaning and emotion, and show how our choice of words can shape our perceptions and attitudes.