Someone who is absolutely awful at comebacks, reputations, and retorts. Often times their replies are met with awkward stares and silence.
Bob: you have no chill
Bill: Yeah, well... YOUR MOM!
Bob: Are you retorted?
Both stubborn and in denial. A condition to describe someone so unbelievably dense that there is just no way of communicating with them.
Josh: Did you hear Ellie thinks the world will end in 2012?
Dave:...but it's 2014...
Josh: yeah. She won't accept any ideas but her own.
Dave: don't worry about it, she's just in stubbornial