Careful or anxious to learn; eager for knowledge; given to research or inquiry; habitually inquisitive; prying; -- sometimes with after or of.

Exciting attention or inquiry; awakening surprise; inviting and rewarding inquisitiveness; not simple or plain; strange; rare.

Those who explore situations with probing questions that penetrate beneath the surface of issues, instead of being satisfied with superficial explanations. OR Eager to learn more.

eager to investigate and learn or learn more (sometimes about others' concerns); "a curious child is a teacher's delight"; "a trap door that made me curious"; "curious investigators"; "traffic was slowed by curious rubberneckers"; "curious about the neighbor's doings"

having curiosity aroused; eagerly interested in learning more; "a trap door that made me curious"