stubbornly sticking to old ways; dislike of new things; narrow-mindedness
固陋な考えに固執していては進歩がない。
There will be no progress by clinging to narrow-minded thinking.
固陋な人物が改革の障害となっている。
A narrow-minded person is becoming an obstacle to reform.
固陋を脱して新しい視野を広げるべきだ。
One should break free from narrow-mindedness and broaden their horizons.