tilting at windmills refers to the act of fighting against imaginary or illusory problems or adversaries, or of engaging in futile or quixotic endeavors. the phrase comes from the novel don quixote, in which the main character, don quixote, is depicted as tilting at windmills, which he believes to be giants, in a series of futile and quixotic attempts to right wrongs and defend the honor of his lady love.
here is an example of tilting at windmills:
imagine that you are trying to solve a problem, but you are approaching it in the wrong way or using the wrong tools. you might be tilting at windmills if you persist in trying to solve the problem despite the fact that your efforts are not making …