The antonyms for the word "under-playing" are "overacting," "exaggerating," "overemphasizing" and "amplifying." When someone underplays a situation, they downplay or minimize its significance. In contrast, overacting is the act of exaggerating the situation, making it look more dramatic than it actually is. Someone who emphasizes something is putting a particular focus on it, drawing attention to its importance, whereas underplaying someone would do the opposite. Amplifying means increasing the intensity of something, often to excess. Understanding these antonyms allows for a more nuanced approach to communication, expressing oneself appropriately in a range of social and professional situations.