The antonyms for the term "being pertinent" are irrelevant, unconnected, inappropriate, extraneous, and immaterial. When something is irrelevant, it lacks any relevance or importance to a particular situation or topic. Similarly, unconnected suggests that there is no connection or relationship between things. Being inappropriate refers to something not being suitable or fitting into a particular context. Extraneous implies that something is unnecessary or irrelevant to a particular point. Finally, immaterial refers to something that does not matter or holds no significance. Therefore, it is essential to understand the antonyms of "being pertinent" to avoid using words in the wrong context.