Abstinent is a term used to describe someone who practices self-restraint, particularly in regards to food and drink. ABSTEMIOUS, which has 10 letters, is an adjective meaning to practice moderation or self-restraint in eating and drinking. CONTINENT, with 9 letters, is an adjective meaning having control over one's desires and impulses. AUSTERE, with 7 letters, is an adjective meaning stern and unadorned. MODERATE, with 8 letters, is an adjective meaning not extreme or excessive. SOBER, with 5 letters, is an adjective meaning not affected by alcohol. DRY, with 3 letters, is an adjective meaning not containing or producing alcohol. TEMPERATE, with 9 letters, is an adjective meaning not extreme or excessive. TEETOTAL, with 8 letters, is an adjective meaning abstaining from all alcoholic beverages. ASCETIC, with 7 letters, is an adjective meaning practicing self-denial or self-discipline. Ascetical, with 9 letters, is an adjective meaning relating to or characteristic of an ASCETIC.