Teetotaler
A teetotaler was an individual who abstained from alcoholic beverages. 

When asked if he would like something to drink by the Species 8472 Valerie Archer replicant, Commander Chakotay asked for water, prompting Archer to ask if Chakotay was a teetotaler. Chakotay responded that he liked to remain in . ()

See also 
 Alcoholic

External link
 
Philosophical movements
Societal classifications