"were case" is not a specific word, therefore it cannot have antonyms. However, if the intended word is "encase," antonyms could be release, free, or uncover. Encasing something means to surround or protect it by putting it inside a covering, container, or casing. Therefore, releasing, freeing, or uncovering it would result in the opposite effect. It's important to use the correct word when searching for antonyms to ensure accurate results. Antonyms can be a useful tool for expanding vocabulary and gaining a deeper understanding of language.