knowledgeable

US /ˈnɑː.lɪ.dʒə.bəl/
UK /ˈnɑː.lɪ.dʒə.bəl/
"knowledgeable" picture
1.

possessing or exhibiting knowledge, intelligence, or perception

:
She is very knowledgeable about ancient history.
The guide was incredibly knowledgeable about the local wildlife.