intellectually

requiring significant mental effort

encouraging new ideas or thoughts

providing mental fulfillment or pleasure

having a strong desire to learn or know something

having a natural high level of intelligence

having a deep and complex understanding of subjects

pursuing knowledge and truth without bias

being actively involved in thinking or learning

believing or showing that one is more intelligent than others

misrepresenting facts or arguments knowingly

being mentally difficult and tiring

unwilling to use one's mind or think hard

considered to be of a good standard by intelligent people

completely lacking in new or valuable ideas

not having or showing enough intelligence

not considered to be of a good standard

to encourage mental activity or development

to occupy or attract someone's interest mentally