I have a cousin who I think (and have long thought) may have oppositional defiant disorder (ODD), or perhaps any one of a variety of similar disorders. His behavior seems to agree with the Wikipedia description.
EXCEPT: According to the wiki, ODD is defined and diagnosed in children/adolescents only, not in adults. My cousin is about 70 years old.
I see references to related conditions of Conduct Disorder (typically in adolescents) and Antisocial Personality Disorder in adults – but the diagnostic criteria for those (especially APD) are far more extreme than what I see in my cousin (fighting, other violence, illegal behavior and history of arrests, etc.) My cousin doesn’t do any of that shit that I know of – he’s just a big chronic obnoxious jerk, more closely fitting the childhood ODD criteria as I see them described in the wiki.
So I’m wondering what diagnosis they would pin on an adult who behaves like an ODD child much of the time. Is it simply Chronic Jerkitude?