Most waveless means the calmest, still and motionless. To understand the antonyms of this word, we need to look for words that relate to agitation and movement. Antonyms for most waveless can be rough, choppy, turbulent, stormy or wavy. These words describe a body of water that is tumultuous, characterized by strong currents, high winds, and strong waves. The opposite of the calmness described by most waveless is chaos, disarray, confusion and disorder. These antonyms highlight a sharp contrast to the calm waters that people enjoy sailing, fishing or swimming in.