Recent research has identified a discreet set of subjective markers that are seen as characterizing the transition to adulthood. The current study challenges this coherence by examining the disparity and variability in young people's selection of such criteria. Four sentence-completion cues corresponding to four different contexts in which adult status might be contested were given to 156 British 16- to 17-year-olds. Their qualitative responses were analyzed to explore patterns whilst capturing some of their richness and diversity. An astonishing amount of variability emerged, both within and between cued contexts. The implications of this variability for how the transition to adulthood is experienced are explored. The argument is made that markers of the transition to adulthood are not merely reflective of the bio-psycho-social development of young people. Rather, adulthood here is seen as an essentially contested concept, located within the discursive interactional environment in which young people participate. (Contains 12 notes.)