Dictionary.com

impair

1
[ im-pair ]
/ ɪmˈpɛər /
Save This Word!
See synonyms for: impair / impaired / impairment on Thesaurus.com

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.
noun
Archaic. impairment.
QUIZ
WILL YOU SAIL OR STUMBLE ON THESE GRAMMAR QUESTIONS?
Smoothly step over to these common grammar mistakes that trip many people up. Good luck!
Question 1 of 7
Fill in the blank: I can’t figure out _____ gave me this gift.

Origin of impair

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

synonym study for impair

1. See injure.

OTHER WORDS FROM impair

Other definitions for impair (2 of 2)

impair2
[ an-per ]
/ ɛ̃ˈpɛr /

adjective French.
noting any odd number, especially in roulette.
Compare pair.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use impair in a sentence

British Dictionary definitions for impair

impair
/ (ɪmˈpɛə) /

verb
(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
FEEDBACK