"In bag" is not a word, it's a phrase that means an item or product is secured inside a bag. Therefore, it's not possible to find antonyms for this phrase. However, we can provide antonyms for different words related to "in bag". For example, the antonyms for "secure" could be insecure or precarious. The antonyms for "inside" could be outside or exterior. Additionally, the antonyms for "bag" could be container or receptacle. By understanding antonyms for different words, we can effectively communicate and articulate our thoughts while speaking or writing in English.