impatient, hot-tempered

躁 is composed of the radical of 足 (foot) and 喿 (chirping of birds). 足 represents walking, while 喿 depicts a flock of birds gathering in a tree and chirping, and carries the sense of multiple times or repetition. Therefore, 躁 conveys the idea of a person walking back and forth impatiently, and means hasty, impatient, or lacking calmness.