The antonyms for "come in to being" are cease, end, stop, and terminate. These words indicate the opposite of something being created or formed. When something has ceased, ended, stopped, or terminated, it means that it no longer exists or has been destroyed. These antonyms are often used to describe the conclusion of a process, event or state. As such, they signify that there is no longer any forward momentum, and everything has come to a standstill. The use of these words also suggests a degree of finality, indicating that there is no way to reverse or undo what has happened.