The word "tipover" refers to the act of overturning or tilting something so that it loses balance and falls. Its antonyms, or opposite words, would be those that describe stability, balance, and upright posture. Some examples of antonyms for "tipover" could be "upright," "stable," "balanced," "firm," "secure," "steady," or "grounded." These words give a sense of standing or sitting securely, without the risk of toppling over. While the antonyms of "tipover" might not be as commonly used, they are still important vocabulary words that can help to clarify meanings and enhance communication.