Which is the scientific name of stubbornness?
A few bits of useful jargon come to mind...

Low cognitive complexity may lead to simplistic and absolutist thinking, which one may also refer to as splitting or &quot;black-and-white&quot; thinking (because there's no recognition of &quot;grey areas&quot;).

Need for closure and low openness to experience may lead to resistance to change, which is a somewhat less pejorative alternative to &quot;stubbornness&quot;. &quot;Mental rigidity&quot; is a little more subtly pejorative, in that you'd probably feel a little offended if someone called you mentally rigid, but clinical literature sometimes uses these terms nonetheless. Hence it has more pathological connotations than &quot;stubborn&quot;, which I think people recognize as more normally applicable – i.e., you can be stubborn without being psychologically abnormal or clinically dysfunctional, but you probably won't feel proud of it, and would prefer more euphemistic terms like &quot;assertive&quot; or &quot;traditional&quot;...which differ in literal meaning from stubbornness.
I guess that's the sort of cognitive distortion that you'd expect to result from self-serving bias: &quot;I'm not stubborn! I just happen to be right!&quot; Then again, if I were to say that, I might not be biased; I might actually be right! How's that for self-serving bias? :)

Confirmation bias differs somewhat from these. Its effects appear when actually seeking to confirm a belief (or hypothesis in a research context, wherein which we're probably most familiar with it), as opposed to when simply stating an absolute, simplistic belief, or refusing to question it at all. If I actually engage in argument and ignore your counterpoints, then you could say I'm demonstrating confirmation bias, but if I simply &quot;tell you how it is&quot; or tell you that you're wrong and refuse to change, that's really not a matter of confirmation bias per se.