The antonyms for "more waveless" would be words such as wavy, choppy, turbulent, rough, and agitated. Wavy and choppy imply movements and fluctuations, such as those of water. Turbulent and rough suggest a sense of violent or unstable motion, while agitated conveys a sense of restlessness or disturbance. These contrasting words highlight the absence or presence of movement, and suggest different moods and atmospheres. Whether describing still waters or tumultuous seas, different word choices can evoke a range of emotions and sensations, making language a powerful tool in creating vivid descriptions and engaging narratives.