adjective
Knowing a lot about a subject or about many subjects.
She's knowledgeable about tax law.
The museum has knowledgeable staff.
Good to know
Knowledgeable means “knowing a lot,” not “famous” or “well-known.”
Common phrases & grammar
highly knowledgeable · knowledgeable staff · knowledgeable person · knowledgeable about a subject
be knowledgeable about + noun
knowledgeable in + field