What is another word for Stiff-neckedness?
Pronunciation: [stˈɪfnˈɛktnəs] (IPA) 
Stiff-neckedness is a term used to describe stubbornness or an unwillingness to change one's opinion or behavior. There are several synonyms that can be used in its place, including obstinacy, inflexibility, rigidity, and dogmatism. These words all convey a similar meaning of being uncompromising and resistant to change. Other synonyms for stiff-neckedness include pigheadedness, bullheadedness, and mulishness, which have a slightly negative connotation that suggests a lack of reason or good sense. Regardless of which word is used, all of these synonyms highlight the difficulty of dealing with someone who is unwilling to adapt or reconsider their viewpoints.
