The antonyms for the word "in-consonances" are agreements, concurrences, and harmonies. These words describe the opposite of in-consonances, which means a lack of agreement or harmony. When there are agreements, people or groups are in harmony and have the same opinions, beliefs, or values, which results in a peaceful and productive collaboration. In contrast, in-consonances lead to misunderstandings, conflicts, or even failure to achieve a common goal. Therefore, it is crucial to strive for agreements and harmonies in all aspects of life, whether it be personal relationships, business dealings, or diplomatic negotiations.