The term "gritty" is an adjective that describes something as being tough, unpleasant or difficult. It can also refer to a person who has determination and courage in the face of adversity. The term comes from the idea of sandpaper having small particles (or grit) that help it to smooth surfaces by removing roughness. In this sense, "gritty" means being able to endure hardship or difficulty with perseverance and tenacity.