The word "inumbrate" means to overshadow or cast a shadow over something. Its antonyms are words that describe the opposite of this action. Some of the antonyms for "inumbrate" are illuminate, brighten, lighten, clarify, and expose. These words describe actions that create light and clarity, rather than darkness and shadow. When something is illuminated, it is made brighter and easier to see, while inumbrating something makes it harder to see or understand. Using antonyms for "inumbrate" can help to convey a sense of openness, clarity, and transparency in writing and speech.