One antonym for the word "de-toured" is straightened. This means to proceed without deviation or to follow a direct path. Another antonym is direct, meaning to take the quickest and most straightforward route to a destination. Additionally, the word "shortcut" can be used as an antonym for "de-toured." This term refers to a direct and faster route taken to bypass more long-winded or time-consuming methods. All of these antonyms suggest a singular and efficient trajectory, in contrast to the scenic and roundabout journey implied by "de-toured.