The term "worms out" implies the act of extracting, removing or getting rid of something from a particular place or situation. The antonyms for "worms out" could be different depending on the context. For instance, if we are referring to holding or retaining something, the antonyms could be keep, hold, maintain or preserve. If the context is about incorporating something, the antonyms could be include, introduce or implant. Similarly, in case of disposal or discarding, the antonyms could be retain, preserve or save. Therefore, the antonyms for "worms out" could vary based on the specific context in which it is used.