Non-uniformity refers to the lack of consistency and regularity in something. Antonyms for non-uniformity include words such as standardization, conformity, consistency, uniformity, and homogeneity. Standardization refers to the practice of establishing a standard, while conformity means being in agreement with a standard or norm. Consistency refers to the quality of being reliable and steady, while uniformity implies that things are the same throughout. Homogeneity refers to the quality of being uniform or similar in nature or kind. These antonyms all convey a sense of order, consistency, and regularity, the opposite of non-uniformity.