noun
prosopagnosia; face blindness
Medical/psychological term for the inability to recognize faces, including one's own. Also known as face blindness.
相貌失認の人は、親しい友人の顔さえ区別できないことがある。
People with prosopagnosia may be unable to distinguish even the faces of close friends.
彼は
He was diagnosed with prosopagnosia.