The antonyms for "inter-changes" would be terms like "disconnects," "disassociates," "diverges," "separates," and "isolates." These terms have the opposite meaning of interchanges and connote a lack of connection or communication between entities or individuals. While interchanges suggest an exchange in ideas or materials, disconnects imply a lack of exchange or shared ideas. Similarly, if two things interconnect, inter-relate, or interlink, then they are united; antonyms meaning denote means of fractionation, division, or disassembly. Therefore, based on the context, the antonyms of "inter-changes" can widely vary.