How would you classify someone who consistently demonstrates an 'obtuse' mindset?

Classifying someone as having an 'obtuse' mindset typically refers to their inability or unwillingness to understand complex concepts or to engage with nuanced ideas. An 'obtuse' individual may struggle to grasp subtleties and complexities in conversations or subjects, often resulting in a lack of responsiveness to intricate arguments or emotional depths.

This understanding aligns well with the notion of being unresponsive to complex ideas. This means the person may fail to see connections or implications that are not immediately obvious, often leading to a simplistic or superficial understanding of issues at hand.

The other options suggest positive traits or abilities, such as high perceptiveness, adaptability, or deep understanding of others, which are contrary to the traits typically associated with an 'obtuse' mindset. Therefore, the classification of being unresponsive to complex ideas accurately captures the core essence of 'obtuseness.'