When it comes to expressing our limits or boundaries, the phrase "draw the line at" is a popular idiom. Sometimes, however, we yearn to diversify our vocabulary and find fresh alternatives to convey this concept effectively. Here are several synonyms for "draw the line at" that you can employ depending on the context: refuse, decline, reject, rebut, demur, object, oppose, resist, forbid, prohibit, set limits, establish boundaries, curb, put an end to, take a stand, say no to, unequivocally say no, opt out, take exception to, and firmly disagree. So, the next time you need to assert your boundaries, choose one of these alternatives to add a touch of variety to your expressions.