An antihero is a protagonist in a story who lacks the traditional heroic qualities of courage, honor, and morality. The term 'antihero' is derived from the Greek prefix 'ANTI, ' meaning against, and the word 'HERO, ' meaning a person of great courage and nobility. The crossword solution for the term 'antihero' is GOAT, which stands for Greatest Of All Time. This acronym is often used to describe someone who is exceptionally talented or successful in their field.