Abstainer

ab·stain  (b-stn, b-)

intr.v. ab·stained, ab·stain·ing, ab·stains

1. To refrain from something by one's own choice: abstain from traditional political rhetoric. See Synonyms at refrain¹.

2. To refrain from voting: Forty senators voted in favor of the bill, 45 voted against it, and 15 abstained.

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[Middle English absteinen, to avoid, from Old French abstenir, from Latin abstinre, to hold back : abs-, ab-, away; see ab-¹ + tenre, to hold; see ten- in Indo-European roots.]

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ab·stainer n.

Thesaurus

Noun	1.	abstainer - someone who practices self denial as a spiritual discipline ascetic religious person - a person who manifests devotion to a deity puritan - someone who adheres to strict religious principles; someone opposed to sensual pleasures stylite - an early Christian ascetic who lived on top of high pillars
	2.	abstainer - a person who refrains from drinking intoxicating beverages abstinent, nondrinker individual, mortal, person, somebody, someone, soul - a human being; "there was too much for one person to do" teetotaler, teetotalist, teetotaller - a total abstainer