Deep-toned refers to a sound or voice that is low in pitch or frequency. Antonyms, or opposites, to this word would include words that describe high-pitched or squeaky sounds. Examples of antonyms for deep-toned include shrill, piercing, high-pitched, and squeaky. These words are often used to describe voices or sounds that are unpleasant or hard to listen to. In contrast, deep-toned sounds are often considered soothing, calming, and pleasant to hear. Using antonyms in writing or speech can add variety and interest to language, making it more engaging and memorable for the reader or listener.