An antihero, or antiheroine, is a protagonist who lacks conventional heroic qualities such as idealism, courage, or morality. These characters are usually considered "conspicuously contrary to an archetypal hero". Although antiheroes may sometimes do the "right thing", it is often for the "wrong reasons" and because it serves their self-interest rather than being driven by moral convictions.
The antihero archetype can be traced back as far as Homer's Thersites. The concept has also been identified in classical Greek drama, Roman satire, and Renaissance literature such as Don Quixote and the picaresque rogue.
The term antihero was first used as early as 1714, emerging in works such as Rameau's Nephew in the 18th century, and is also used more broadly to cover Byronic heroes as well.
Literary Romanticism in the 19th century helped popularize new forms of the antihero, such as the Gothic double. The antihero eventually became an established form of social criticism, a phenomenon often associated with the unnamed protagonist in Fyodor Dostoevsky's Notes from Underground. The antihero emerged as a foil to the traditional hero archetype, a process that Northrop Frye called the fictional "centre of gravity." This movement indicated a literary change in heroic ethos from feudal aristocrat to urban democrat, as was the shift from epic to ironic narratives.
Huckleberry Finn (1884) has been called "the first antihero in the American nursery."