In-congruity refers to a lack of harmony, consistency or compatibility between things. The antonyms for this word are agreement, harmony, consistency, unity, compatibility, coherence, conformity and uniformity. Agreement pertains to a mutual understanding, approval or pact between individuals or parties. Harmony involves a pleasing combination of elements or actions that blend together effortlessly. Consistency implies conformity to a set of standards, while unity involves a sense of oneness or wholeness between two or more things. Compatibility refers to the ability of things to work well together without conflict, while coherence implies a logical and consistent connection between disparate ideas, situations or concepts. Conformity implies adherence to a set of rules or social norms, while uniformity indicates sameness or consistency in appearance, character or behavior.