Nitty-gritty is an informal term that refers to the authentic and fundamental components of something. Antonyms for this words include superficial, unimportant, and peripheral. Alternatively, you can use terms like trivial, meaningless, and inconsequential to describe those things that are not part of the nitty-gritty. While nitty-gritty deals with the essentials, its antonyms detach from the center and imply that something lacks significance or fails to address the core issues. When you need to express the opposite of nitty-gritty, you can use any of these antonyms depending on the context and the tone you want to convey.