[ im-paird ]
/ ɪmˈpɛərd /


weakened, diminished, or damaged: impaired hearing; to rebuild an impaired bridge.
functioning poorly or inadequately: Consumption of alcohol results in an impaired driver.
deficient or incompetent (usually preceded by an adverb or noun): morally impaired; sports-impaired.

Origin of impaired


un·im·paired, adjective

Definition for impaired (2 of 2)

[ im-pair ]
/ ɪmˈpɛər /

verb (used with object)

to make or cause to become worse; diminish in ability, value, excellence, etc.; weaken or damage: to impair one's health; to impair negotiations.

verb (used without object)

to grow or become worse; lessen.


Archaic. impairment.

Origin of impair

1250–1300; Middle English empairen, empeiren to make worse < Middle French empeirer, equivalent to em- im-1 + peirer to make worse < Late Latin pējōrāre, equivalent to Latin pējōr-, stem of pējor worse + -ā- thematic vowel + -re infinitive suffix; cf. pejorative

OTHER WORDS FROM impair Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for impaired

British Dictionary definitions for impaired

/ (ɪmˈpɛə) /


(tr) to reduce or weaken in strength, quality, etchis hearing was impaired by an accident

Derived forms of impair

impairable, adjectiveimpairer, nounimpairment, noun

Word Origin for impair

C14: from Old French empeirer to make worse, from Late Latin pējorāre, from Latin pejor worse; see pejorative
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012