Dummkopf

noun

A person who is considered to be foolish or stupid. noun
He forgot his keys again; what a dummkopf!
Only a dummkopf would try to fix a car engine without any knowledge of mechanics.

translations

🇺🇸 English → fool arkikieli, loukkaava

🇩🇪 German → Dummkopf arkikieli, loukkaava, epämuodollinen