In-consonance is a term used to describe something that doesn't match or is not in agreement with something else. Antonyms for in-consonance include accord, agreement, harmony, and concord. These words describe a state of being in which everything is working together smoothly and correctly. The opposite of in-consonance is a state of harmony, agreement, and unity. When things are in concord, they work perfectly together, and there is no friction or dissonance. In all aspects of life, it's vital to strive for harmony and agreement, whether in personal relationships or business partnerships, Having the opposite of in-consonance can lead to better communication and overall success.