1. in a way that shows lack of understanding or intelligence; stupidly
2. in a way that is deliberately unhelpful or uncooperative

Examples

• He obtusely refused to acknowledge the obvious solution.
• She stared obtusely at the math problem, unable to grasp the concept.
• The student obtusely ignored all the teacher’s hints.
• He obtusely insisted on doing things his way despite clear instructions.
• The witness obtusely claimed not to understand simple questions.
• She obtusely pretended not to see the connection between the events.