Dreiskopf
Dreiskopf is a German word primarily used informally to describe a person who is stubborn, obstinate, and headstrong. It suggests a willful refusal to listen to reason or advice, even when such behavior is detrimental to themselves or others.
The word literally translates to "three-head," implying a metaphorical excess of heads, each with its own opinion, making the individual difficult to convince or persuade. It's important to note that "Dreiskopf" isn't a complimentary term and carries a negative connotation. It highlights a perceived lack of flexibility and a resistance to outside influence. The degree of negativity depends on the context and tone of the speaker.
While not a formal psychological term, "Dreiskopf" is deeply embedded in colloquial German and serves as a concise way to characterize a particular type of stubbornness. Its usage often carries a sense of exasperation or amusement depending on the situation.