There are several synonyms for the phrase "study at defeat." These include analyzing failure, examining losses, scrutinizing defeat, studying setbacks, and evaluating disappointments. Each of these phrases describes a process of closely analyzing and studying one's failures with the goal of learning from one's mistakes and improving for the future. By carefully examining defeat, one can identify areas that need improvement and develop strategies for success. It is important to approach failure with an open mind and a willingness to learn, rather than allowing it to discourage or defeat oneself. With determination and perseverance, studying defeat can ultimately lead to greater success and achievement.