Stonewalling is a term used to describe the refusal to cooperate or engage in dialogue. It is often used as a tactic to avoid answering difficult questions or to prevent progress in negotiations. In this context, it can be seen as a form of passive resistance, where one party refuses to cooperate with the other. Stonewalling is a term that is closely related to the phrase 'refuse to cooperate' and can be used to describe the same behavior.