Incurious
/ɪnˈkjʊriəs/
Definition 1 of 1
Pro Tip 1/3Lack of Curiosity
Incurious suggests a person has no desire to learn more or explore something further. 
He was incurious about other cultures, never asking questions or seeking new experiences.
Pro Tip 2/3Negative Emotion
Incurious often implies a negative sense about someone's attitude or character, suggesting apathy. 
Her incurious nature made her seem distant and aloof during the discussion.
Pro Tip 3/3Avoid Underestimation
Being incurious doesn't always mean lack of intelligence. It may be a lack of interest in a specific topic. 
Even brilliant students can appear incurious if a subject doesn't engage them.