THESAURUS
hear a different drummer
agree to disagree, be at cross-purposes, break, break bounds, break off, break step, clash, collide, conflict, contradict, counter, differ, disaccord, disagree, dissent, drop out, jangle, jar, jostle, make waves, mismatch, mismate, negate, nonconform, not comply, not conform, object, opt out, protest, rock the boat, vary