The antonyms for the phrase "go riding" vary depending on the context in which it is used. If "go riding" means taking a leisurely ride on horseback, then antonyms could include "stay indoors," "sit still," or "remain stationary." If "go riding" means driving a vehicle, then antonyms could include "park," "stay put," "remain stationary," or "not depart." In a general sense, antonyms for "go riding" might include "stay at home," "sit around," "avoid movement," or "eschew travel." Ultimately, the antonyms for "go riding" are determined by the specific circumstances and the meaning conveyed by the phrase.