The haltlose personality has been used to refer to someone with an aimless and irresponsible lifestyle. This type of person seems to “lack a hold” on life. Slater & Roth described the haltlose personality as “the unstable psychopath.” Schneider used the phrase “Willenlose Psychopathen.” These people seem to display a lack of will or purpose, with no interest in the future and little grounding in the past. Some with chronic substance dependence have been said to have haltlose personality disorder.