彼の考え方は狭隘だ。
His way of thinking is narrow-minded.
狭隘な民族主義は対立を深めるだけだ。
Narrow-minded nationalism only deepens conflict.
自分と異なる意見を認めないのは狭隘な態度だ。
Refusing to accept opinions different from your own is a small-minded attitude.
視野の狭隘を自覚して、幅広く本を読むようにした。
Aware of the narrowness of my outlook, I made a point of reading widely.