The term "be back of" refers to being in support of someone or something. Its antonyms include contradict, oppose, resist, and defy. These words describe a stance that is in direct opposition to being behind or supporting something. When someone contradicts or opposes a decision, action, or opinion, they are actively standing against it. Similarly, to resist or defy something is to reject it entirely. Understanding the antonyms for "be back of" helps express opinions and beliefs more clearly and accurately. It is essential to consider these antonyms and understand their implications when taking a stand, either in favor or against something.