What are the opposite words for existence?

Existence is a term that refers to the state of being alive or present in the world. However, there are several antonyms that describe non-existence or the absence of life. One opposite of existence is "non-being," which denotes the state of not existing or lacking any form of existence. Another antonym is "annihilation," which suggests the complete destruction or obliteration of something that once existed. "Death" is another contrary term that refers to the end of life or the cessation of existence. "Extinction" is a related antonym that implies the disappearance of an entire species or the elimination of a particular thing from existence.