Example : Knowing instructors.
A knowledgeable critic.
A knowledgeable audience.

Synonyms : knowing, learned, lettered, well-educated, well-read

Example : A knowing collector of rare books.
Surprisingly knowledgeable about what was going on.

Synonyms : knowing

Example : This girl, so intimate with nature.
Knowledgeable about the technique of painting.

Synonyms : intimate, versed