Sweet sounding is an adjective that connotes sounds that are pleasing and melodious to the ears. However, there are antonyms to the word that denote harsh, unpleasant, and discordant. Screechy, jarring, grating, and abrasive are just a few of the many antonyms to sweet sounding. These words describe sounds that may be uncomfortable to listen to or may trigger feelings of annoyance or discomfort. While sweet sounding is often associated with music, voices, and sounds in nature that elicit peaceful feelings and relaxation, antonyms like these are often used to describe sounds that are unsettling, loud, or sharp.