nondrinker

noun

1. One who does not drink alcohol; a teetotaler.

   “A majority of adolescents (66%) believe that an adolescent who changed from heavy drinker to nondrinker will be accepted by nondrinkers/moderate drinkers.”

2. Someone who does not drink a specified beverage (milk, wine, coffee, etc).

   “Data were analyzed to test differences between: (1) drinkers and nondrinkers of milk, and (2) [...]”