Simple Definition of impair
: to make (something) weaker or worse
Full Definition of impair
: to damage or make worse by or as if by diminishing in some material respect <his health was impaired by overwork> <the strike seriously impaired community services>
Examples of impair in a sentence
Smoking can impair your health.
Drinking impairs a person's ability to think clearly.
His memory was so impaired by age that he often forgot where he was.
Origin of impair
Middle English empeiren, from Anglo-French empeirer, from Vulgar Latin *impejorare, from Latin in- + Late Latin pejorare to make worse — more at pejorative
First Known Use: 14th century
Synonym Discussion of impair
Rhymes with impair
affair, aglare, airfare, Ajmer, Altair, antbear, armchair, au pair, aware, bakeware, barware, Basseterre, Baudelaire, beachwear, bergère, beware, bid fair, big hair, black bear, bricklayer, broodmare, brown bear, bugbear, caneware, carfare, Carrère, cave bear, chi-square, clayware, club chair, compare, compere, confrere, cookware, corsair, courseware, creamware, crosshair, cudbear, daymare, dead air, decare, deck chair, declare, delftware, despair, dishware, éclair, elsewhere, ensnare, eyewear, fanfare, fieldfare, firmware, flatware, Flaubert, footwear, forbear, forebear, forswear, foursquare, freeware, funfair, galère, giftware, glassware, Great Bear, groupware, Gruyère, guard hair, hardware, health care, hectare, high chair, horsehair, hot air, infare, Khmer, Kildare, knitwear, life-care, light air, longhair, loungewear, Mayfair, menswear, meunière, midair, mohair, Molière, neckwear, nightmare, no fair, outstare, out-there, outwear, playwear, plein air, plowshare, Poor Clare, Port Blair, portiere, premiere, prepare, pushchair, rainwear, redware, repair, root hair, Sancerre, sea hare, shank's mare, shareware, shorthair, side chair, Sinclair, skiwear, sleepwear, slipware, sloth bear, software, somewhere, spongeware, sportswear, stemware, stoneware, sun bear, swimwear, threadbare, tinware, torchère, trouvère, tuyere, unfair, unhair, unswear, Voltaire, warfare, welfare, wheelchair, wirehair, workfare
IMPAIR Defined for Kids
Legal Definition of impair
1 : to damage or make worse by or as if by diminishing <impaired health>
2 : to diminish the value of (property or property rights); specifically : to diminish the value of (legal contractual obligations) to the point that a party loses the benefit of the contract or the contract otherwise becomes invalid <a law impairing a state's own obligations was entitled to less deference — Gerald Gunther> — see also contract clause
Seen and Heard
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