Discusses the relation between personality factors and 2 adult forms of disinhibitory psychopathology: alcohol abuse or dependence and antisocial personality disorder. First, the various methodological issues relevant to research in this area are reviewed. Next, empirical findings relating 3 broad-band personality trait dimensions (neuroticism/emotionality, impulsivity/disinhibition, extraversion/sociability) to both alcohol abuse and dependence and antisocial personality disorder are reviewed. Finally, theoretical models of the relationship between personality and each of these 2 disorders are presented. It is concluded that although no single personality description is likely to be both a sensitive and specific indicator of either alcoholism or antisocial personality disorder, personality variables are important components of etiological models of these disorders.(PsycInfo Database Record (c) 2022 APA, all rights reserved)