The antonyms for the word "inter-mingle" are to separate, to segregate, to dissociate, to divide and to isolate. Separating means to part or put far apart from each other. Segregating means to isolate or separate one group from another. Dissociating means to disconnect something from a group, association or system. Dividing means to split into two or more parts. Isolating means to set apart from others or to keep alone. In essence, these antonyms are opposite in meaning to "inter-mingle," which is to mix or blend things or people together. By understanding the antonyms of "inter-mingle," one can use them to express their ideas more precisely.