small-minded
US /ˌsmɔːlˈmaɪn.dɪd/
UK /ˌsmɔːlˈmaɪn.dɪd/
1.
having a narrow outlook or scope; petty or provincial
:
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His small-minded comments revealed his lack of understanding.
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Don't let small-minded people discourage your dreams.
having a narrow outlook or scope; petty or provincial