Webster's Revised Unabridged Dictionary · 1913

Inquisitive

Inquisitive , adjective

[Old English inquisitif, French inquisitif.]

1.
Disposed to ask questions, especially in matters which do not concern the inquirer.
A wise man is not inquisitive about things impertinent. — Broome
2.
Given to examination, investigation, or research; searching; curious.
A young, inquisitive, and sprightly genius. — I. Watts
[We] curious are to hear, What happens new. — Milton
This folio of four pages [a newspaper], happy work! Which not even critics criticise; that holds Inquisitive attention, while I read. — Cowper
Nor need we with a prying eye survey The distant skies, to find the Milky Way. — Creech

Inquisitive , noun

A person who is inquisitive; one curious in research. — Sir W. Temple