Origin: Latin suffix -able
Knowledgeable has 5 different meanings across 1 category:
A person who has knowledge; an informed party.
"The knowledgeable staff member was able to explain every detail of the complex medical procedure to the worried patient."
In plain English: There is no noun form of knowledgeable; it is only an adjective used to describe someone who knows a lot about something.
"He consulted his knowledgeable on local hiking trails before setting out for the weekend trip."
highly educated; having extensive information or understanding
"knowing instructors"
"a knowledgeable critic"
"a knowledgeable audience"
alert and fully informed
"a knowing collector of rare books"
"surprisingly knowledgeable about what was going on"
thoroughly acquainted through study or experience
"this girl, so intimate with nature"
"knowledgeable about the technique of painting"
Having knowledge, especially of a particular subject.
"The knowledgeable librarian helped me find rare books on ancient history."
In plain English: Knowledgeable means having a lot of information and understanding about something specific.
"The knowledgeable guide explained all the local history to our group."
Usage: Use knowledgeable to describe someone or something that possesses specific information about a topic rather than general awareness. It is often confused with the noun "knowledge," which refers to the facts themselves instead of the person holding them.
Knowledgeable is formed by adding the suffix "-able," meaning capable of being done, to the word knowledge. This construction directly describes someone who has or shows a good understanding of a subject.