In-felicities refer to imperfections, errors or mistakes in something. The antonyms for this word include perfections, excellences, and merits. Perfections refer to the state of being complete or flawless. Excellence is a state of being exceptionally good or superior in quality, while merits refer to the inherent virtues or values of something. Other antonyms for infelicities include accuracies and strengths, which signify the opposite of errors and weaknesses. The antonyms of infelicities reflect the positive aspects of something, which are desirable and of great value. Therefore, infelicities should be minimized or avoided to achieve perfections, excellences or merits.