The term "stayed course" refers to sticking to a plan or remaining on a certain path. Its antonyms are words that describe actions of deviating from the original plan or changing course. Among them are veered off, sidetracked, diverged, strayed, and deviated. When people veer off or diverge from the course, they often end up in different directions, making the original plan impossible to achieve. Sidetracking and straying refer to getting distracted or losing focus, leading to the inability to remain on course. Deviating, on the other hand, implies a deliberate change of direction, which can either lead to a better outcome or a disastrous one.