abstinent

adj. characterized by self-denial, characterized by forbearance and self-restraint

Abstinence is a voluntary restraint from indulging a desire or appetite for certain bodily activities that are widely experienced as giving pleasure. Most frequently, the term refers to abstention from sexual intercourse, alcohol or food. The practice can arise from religious prohibitions or practical considerations.
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Abstinence /ab·sti·nence/ a refraining from the use of or indulgence in food, stimulants, or sexual activity. periodic abstinence rhythm method. [more]Abstinent - Community and Resources

Noun
1. a person who refrains from drinking intoxicating beverages
(synonym) abstainer, nondrinker
(hypernym) person, individual, someone, somebody, mortal, human, soul
(hyponym) teetotaler, teetotaller, teetotalist
(derivation) abstain, refrain, desist
Adjective
1. self-restraining; not indulging an appetite especially for food or drink; "not totally abstinent but abstemious"
(synonym) abstentious
(similar) abstemious

adj. abstinent, refraining, characterized by forbearance and self-restraint