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Definition of: impair
(im·pâr′) v.t.
To diminish in quality, strength, or value; injure. [<OF empeirer <LL in- thoroughly + pejorare make worse <L pejor worse] Synonyms: debase, decrease, deteriorate, diminish, enervate, enfeeble, lessen, reduce, weaken. See HURT, WEAKEN, WEAR. Antonyms: see synonyms for AMEND, INCREASE.
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