The antonyms for the phrase "being relevant to" are numerous, and can be contextualized in various ways. Some possible antonyms include: being irrelevant to, being unrelated to, being inconsequential to, being unimportant to, being immaterial to, being disconnected from, being detached from, being beside the point of, being discordant with, being disconnected from, and being disconnected from the topic at hand. Each of these antonyms suggests a different kind of distance or disconnect between a given subject or information and the focus or interest of a particular conversation, task, or situation. Understanding these antonyms can help us better articulate our ideas and communicate more clearly in various contexts.