narrow-minded

US /ˌner.oʊˈmaɪn.dɪd/
UK /ˌner.oʊˈmaɪn.dɪd/
"narrow-minded" picture
1.

not willing to listen to new ideas or to the opinions of others

:
His narrow-minded views on immigration caused a lot of debate.
Try not to be so narrow-minded; consider other perspectives.