To find the antonyms for the phrase "brought in to existence," we need to look for words that express negation or non-existence. Some possible antonyms might include words like eradicated, destroyed, ceased to exist, abolished, or obliterated. These terms suggest the opposite of creating or starting something new. Other antonyms might include words like vanished, evaporated, dissipated, or dispersed, which convey a sense of something fading away or disappearing gradually. In contrast to bringing an idea or object into being, these antonyms suggest a process of decay or disintegration, as if something that once existed has now vanished completely.