The term "be component" refers to an essential part or element of something. Its antonyms would be "non-essential," "irrelevant," or "extraneous." These words suggest that the component in question is not crucial to the functionality or overall structure of a system or object. Other antonyms would include "unimportant," "inessential," "superfluous," or "unnecessary." These words imply that the component in question could be removed without any significant impact on the integrity or performance of the larger system. Understanding the opposite meanings of "be component" can help clarify the importance and relevance of components in a particular context.