expression, noun-modifying (irregular)
narrow-minded; intolerant; small-minded
Describes a person who is unwilling to accept different ideas or behaviors; often used critically.
He is a narrow-minded person and never listens to others' opinions.
そんな心の狭い考え方はやめたほうがいい。
You should stop such a small-minded way of thinking.
Phrase composed of 心 (heart, mind) + の (possessive particle) + 狭い (narrow). The metaphorical extension of 'narrow' to describe a limited, intolerant mindset is natural and not historically complex.