mainstream рдХреНрдпрд╛ рд╣реИрдВ? mainstream рдХреНрдпрд╛ рд╣реИрдВ? The prevailing current of thought, influence, or activity: "You need not accept the nominee's ideology, only be able to locate it in the American mainstreamтАЭ ( Charles Krauthammer). Representing the prevalent attitudes, values, and practices of a society or group: mainstream morality. To integrate (a student with special needs) into regular school classes.To incorporate into a prevailing group.