The antonyms for the word "pre existed" are 'nonexistent,' 'absent,' 'uncreated,' 'unformed,' 'unmade,' and 'unrealized.' These antonyms indicate the opposite of pre-existing, meaning that something did not exist or was not present before. In contrast to pre-existing, these words suggest something that is either yet to be created or has ceased to exist. The word "nonexistent" suggests a complete absence of existence, whereas "absent" implies something that is missing or not found. "Uncreated," "unformed," "unmade," and "unrealized" mean that something has not yet been brought into existence or has not been fully developed.