Fetching details from the dictionary...
bigoted; obstinate; stubborn; pigheaded
頑迷な上層部が改革を阻んでいる。
The obstinate upper management is blocking reform.
頑迷固陋な考えでは時代に取り残される。
With obstinate and narrow thinking, one will be left behind by the times.
頑迷な態度を改めない限り進歩はない。
There will be no progress unless the stubborn attitude is changed.