The answer to the crossword for the term WHAT YOU MIGHT UNTHINKINGLY BE ON is AUTO. This is a four letter word that refers to an automobile. An automobile is a vehicle with four wheels that is powered by an internal combustion engine and is used for transportation. Being on an AUTO can refer to either driving or riding in one. Unthinkingly being on an AUTO could mean that someone is not paying attention to their surroundings while driving or riding in a car.