What is stunad?

"Stunad" is an Italian-American slang term derived from Italian dialects, and it's commonly used in some Italian-American communities, particularly in the northeastern United States. The word is usually a playful or teasing way to call someone "stupid" or "ignorant." It's akin to saying someone is a "knucklehead" or "dummy." The term can be compared to the Italian word "stonato," which means out of tune or off-key, but in the context of dialect or slang, it means someone who is not very bright or is acting foolishly. It's often used in a light-hearted or affectionate manner among friends and family.