The word "am quiescent" implies a state of tranquility or calmness. Its antonyms, therefore, would be words that describe action, movement, or agitation. Some antonyms for "am quiescent" include active, agitated, restless, disturbed, hyperactive, and turbulent. These words denote a state of constant motion or disturbance, and are the opposite of the peaceful state implied by "am quiescent". Choosing the right antonym will depend on the context in which it is used, but selecting the opposite of "am quiescent" will communicate a sense of frenzied activity or turmoil.