Lacking color, consisting of shades of black, white, and gray. The old movie was filmed in black-and-white, giving it a classic feel.
Simplistic or overly simplistic, lacking nuance or complexity. Her black-and-white view of the situation didn't take into account the various factors involved.
Based on or portraying two mutually exclusive categories, especially of right and wrong, with no shades of gray. His black-and-white morality left little room for compromise.