The term "dissonant" refers to sounds that are harsh and unpleasant to the ears. Antonyms for this word include "harmonious," "melodious," "pleasing," "consonant," and "agreeable." These words describe sounds that are pleasing to the ear and evoke feelings of tranquility and calmness. "Harmonious" suggests a sound that is in agreement and is well-balanced, while "melodious" describes sounds that are tuneful and musical. "Pleasing" and "agreeable" refer to sounds that elicit positive emotions and are enjoyable to listen to. "Consonant" refers to sounds that are in harmony and accord and add to the general sense of balance and unity.