knuckleheaded

adj

1. Stupid or inept, like a knucklehead.

   “It’s not exactly a Pixar-level examination of complicated family dynamics, and the movie still has plenty of knuckled-headed, Sandler-style boys-will-be-dumbasses shtick: Children everywhere will surely thrill to the sub-subplot about Frank catching hell about his gambling problem from his wife, Eunice (Fran Drescher)!”