The word "safe conduct" refers to permission or a pass that guarantees safety for a person or a group of people during a journey. Antonyms for "safe conduct" include "prohibition," "exclusion," "restraint," "ban," or "denial" of permission, which can put individuals or groups in danger while traveling. These antonyms can also imply the opposite of safety, such as violence or harm towards someone. In history, safe conducts were used to protect diplomats, envoys, and prisoners of war during conflicts or peace negotiations. The opposite of this practice was often violent and dangerous, resulting in a breach of human rights.