Being agitated is a term used to describe an individual who is highly restless and anxious. Antonyms to this phrase could include being calm, peaceful, relaxed, tranquil, composed, and collected. These words indicate a person who is in control of their emotions and can manage stress effectively. An individual who is calm tends to be unruffled and does not easily get flustered in tense situations, whereas a peaceful person displays a sense of serenity and harmony. A relaxed individual, on the other hand, can be free from excessive tension or worry, while a tranquil person displays a peaceful and quiet ambiance. In contrast, someone who is composed and collected is highly efficient and rational in their approach to difficult situations.