What does "obtuse" imply when describing a person?

When "obtuse" is used to describe a person, it refers to someone who is slow to learn or understand things. This term often suggests a lack of sharpness in perception or intellect, indicating that the individual may struggle to grasp concepts or catch on to discussions easily. The connotation of being obtuse carries an implication of dullness or insensitivity, particularly in social or intellectual contexts.

The other options denote qualities of brightness, quick-wittedness, or exceptional intelligence, which are in direct contrast to the meaning of "obtuse." These terms suggest mental agility or a high level of understanding, characteristics that do not align with the definition of someone who is obtuse. Such contrasting notions help clarify why "slow to learn or understand" is the most fitting interpretation in this context.