The antonyms for the word "inter-mixes" are words that mean to separate or divide. Some examples include isolate, segregate, divide, detach, disconnect, and separate. These words convey the opposite meaning of "intermix," which refers to the blending or mixing of two or more things together. For instance, if a recipe calls for separating the egg yolks from the whites, you would use the antonym "separate." Similarly, if you wanted to keep two groups of people apart, you would use the antonym "segregate." These antonyms are valuable because they allow individuals to communicate more effectively by providing more options to express themselves clearly.