"Go too far" is a colloquial phrase that refers to behaving in an extreme or unacceptable manner. However, there are various synonyms for this phrase that one can utilize. Instead of saying "go too far," one can use expressions like "cross the line," "overstep the bounds," "push the envelope," "reach the limit," "become excessive," "exceed the mark," "overdo it," or "take things too far." Using apt synonyms for "go too far" adequately depicts one's message to the audience. By making use of these synonyms in writing or speech, it's easier to convey one's thoughts precisely without any ambiguity.