knowledgeable
UK: ˈnɒlɪdʒəbl̩ | US: ˈnɑːlɪdʒəbl̩
adj. possessing or showing knowledge or intelligence
adj. well-informed; educated
The word "knowledgeable" combines "knowledge," derived from Middle English knowleche (from Old English cnāwan, "to know"), with the suffix "-able," from Latin -abilis, indicating capability. The fusion reflects the transition from simply "knowing" to being "capable of knowing" or "well-informed." The suffix "-able" was adopted into English via Old French, reinforcing the adjective's sense of possessing qualities (here, knowledge). This construction mirrors other "-able" adjectives (e.g., "teachable," "manageable"), emphasizing adaptability and learned traits.
She is highly knowledgeable about medieval history.
The professor was knowledgeable yet approachable.
A knowledgeable guide enhanced our museum visit.
His knowledgeable advice saved the project.
Stay curious to remain knowledgeable in your field.