认死理

verb

to stubbornly adhere to one's own reasoning or principles; to be obstinately inflexible

Often used to describe someone who rigidly follows their own logic without considering other perspectives. In northern dialects, the 儿 suffix is commonly added (认死理儿). Often collocates with 有点儿 to indicate mild stubbornness. The term can be neutral or mildly critical depending on context.