The word "cantillate" means to chant or sing with a smooth, flowing rhythm. Some antonyms for this word include speaking, growling, grunting, snarling or shouting. These words describe the opposite of the calm, melodic tone that "cantillate" implies. Other antonyms might include stammering, stuttering, or stumbling over words. These words describe an inability to speak smoothly or confidently. While "cantillate" has positive connotations of harmony and fluidity, its antonyms suggest a rough, discordant, or hesitant manner of speaking or singing. Choosing the right words when communicating is critical to convey the appropriate tone and meaning.