Stoicalness is a behavioral trait characterized by a strong, calm, and unruffled disposition. It is often associated with the philosophy of stoicism, a school of thought that emphasizes self-control and detachment from emotional attachments. Synonyms for stoicalness include composure, equanimity, impassivity, serenity, and detachment. Other related terms include resilience, fortitude, self-discipline, and self-possession. All these synonyms reflect the ability to remain calm and collected in the face of adversity, to maintain a clear and focused mind, and to avoid being overwhelmed by strong emotions. In short, stoicalness is a highly valuable personality trait that enables individuals to face challenges with courage and grace.