The antonyms for the word "most nettled" would be calm, composed, tranquil, unperturbed, and untroubled. When a person is calm, they are not easily agitated or irritated. When they are composed, they exhibit a sense of peace and serenity. Tranquility is a state of being calm and peaceful, without any disturbance or interruption. Unperturbed implies that a person is unaffected by something that might have disturbed or annoyed them. Finally, untroubled means that a person is free from worry, anxiety, or distress. These antonyms offer a powerful contrast to the negative connotations of "most nettled.