The antonyms of nonuniform are uniform, consistent, regular, homogeneous, and standardized. Uniform refers to something that is the same throughout, and it is often used to describe clothes, patterns, or distribution. Consistent pertains to things that are steady or dependable, with no deviations or fluctuations. Regular denotes something that follows a pattern or schedule, or something that is symmetrical in shape. Homogeneous refers to something that is composed of the same kind of elements or components. And finally, standardized means that something has been made uniform in accordance with set criteria or specifications. In summary, the antonyms of nonuniform are words that describe a quality of sameness, consistency, and regularity.