A foolish or stupid person.

An insult used to describe someone who is being incompetent.

किसी ऐसे व्यक्ति का अपमान जो अयोग्य हो।

English Usage: "He really made a knucklehead move by forgetting the meeting."

Hindi Usage: "उसने मीटिंग भूलकर सच में एक मूर्खता की।"