buffoon
n.a person who is very silly, loud, or annoying. You use this word to describe someone who acts like a clown in a way that is not funny at all.
n.a person who is foolish, clownish, or ridiculous in appearance or behavior. Often carries a derogatory or dismissive tone.
“The politician was treated like a buffoon by the news reporters.”
“After making several embarrassing mistakes in front of the board, the manager was dismissed as a buffoon by his colleagues.”
“The satirical play portrays the king as a buffoon, highlighting how his lack of intelligence and erratic behavior eventually leads to the collapse of his entire court.”
“Image caption, The Daily Mirror calls Tice a "wine buffoon" in its headline, referencing his comments on the deadly heatwaves being good for English wine production.”