abstinent abstinent /ˈæbstɪnənt/

adjective

1. Self-restraining; not indulging an appetite especially for food or drink  ( abstentious , abstinent )
   self-restraining; not indulging an appetite especially for food or drink
    Not totally abstinent but abstemious
   not totally abstinent but abstemious
   

noun

1. A person who refrains from drinking intoxicating beverages  ( abstainer , abstinent , nondrinker )
   a person who refrains from drinking intoxicating beverages