Antonyms for the phrase "has a go at" can include phrases like "letting it be," "refraining from criticism," and "giving a pass." These phrases indicate a lack of action or a conscious decision not to criticize or participate in an activity. Other possible antonyms for "has a go at" could include "leaves alone," "accepts," or "ignores." Using these phrases instead of "has a go at" can indicate a more positive or neutral attitude towards the subject, rather than a critical or accusatory tone. It is important to choose the appropriate antonym based on the context and intended message of the sentence.