narrow-minded

This term carries a strong negative connotation, suggesting a rigid intellectual stubbornness or a lack of empathy for diverse experiences. It describes a psychological state of closure where an individual actively resists information that contradicts their established beliefs, often leading to prejudice or intolerance.

In social and professional settings, the word is used to criticize a lack of flexibility or innovation. It differs from being principled or firm in one's beliefs by implying a deficiency in curiosity and an inability to engage in critical self-reflection.