Dis-quietude is a state of restlessness or unease which can be caused by numerous factors such as anxiety, stress, and tension. The opposite of disquietude, or antonyms, include peace, calmness, serenity, tranquility, and composure. These words describe a feeling of inner peace and mental tranquility. When we experience peace, we feel relaxed and undisturbed, and our minds are free from worry or anxiety. Calmness refers to a state of being relaxed and composed while serenity refers to a feeling of peace and tranquility. Tranquility describes a state of stillness and calmness, and composure refers to a state of self-control and calmness in stressful situations.