"knowledgeable" in the adjective sense
1. knowing, knowledgeable, learned, lettered, well-educated, well-read
highly educated having extensive information or understanding
"knowing instructors"
"a knowledgeable critic"
"a knowledgeable audience"
2. knowledgeable, knowing
alert and fully informed
"a knowing collector of rare books"
"surprisingly knowledgeable about what was going on"
3. intimate, knowledgeable, versed
thoroughly acquainted through study or experience
"this girl, so intimate with nature"-W.H.Hudson
"knowledgeable about the technique of painting"- Herbert Read
Source: WordNet® (An amazing lexical database of English)
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