The antonyms for the word "nonmaterial" include "material," "physical," "tangible," "corporeal," "substantial," "real," "concrete," "solid," "visible," "touchable," "palpable," and "tactile." These words describe aspects that are physical or touchable in nature, such as objects, matter, and substances. Unlike "nonmaterial," the antonyms suggest that something has a physical form or substance that can be perceived and interacted with in the world. Understanding the antonyms of a word offers a wider range of vocabulary choices in communication and enhances clarity in expressing ideas.