small–minded

small–minded /ˈsmɑːlˈmaɪndəd/ adjective
small–minded
/ˈsmɑːlˈmaɪndəd/
adjective
Britannica Dictionary definition of SMALL–MINDED
[more small–minded; most small–minded] disapproving
1 
: not interested in new or different ideas : not willing to accept the opinions of other people
2 
: typical of a small-minded person

— small–mindedness

noun [noncount]