impair

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im·pair

 (ĭm-pâr′)
tr.v. im·paired, im·pair·ing, im·pairs
To cause to weaken, be damaged, or diminish, as in quality: an injury that impaired my hearing; a severe storm impairing communications.

[Middle English empairen, from Old French empeirer, from Vulgar Latin *impēiōrāre : Latin in-, causative pref.; see in-2 + Latin pēior, worse; see ped- in Indo-European roots.]

im·pair′ment n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

impair

(ɪmˈpɛə)
vb
(tr) to reduce or weaken in strength, quality, etc: his hearing was impaired by an accident.
[C14: from Old French empeirer to make worse, from Late Latin pējorāre, from Latin pejor worse; see pejorative]
imˈpairable adj
imˈpairer n
imˈpairment n
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

im•pair

(ɪmˈpɛər)

v.t.
to make or cause to become worse; weaken; damage: habits that impair one's health.
[1250–1300; Middle English empairen to make worse < Middle French empeirer=em- im-1 + peirer to make worse < Late Latin pējōrāre, v. derivative of Latin pējor worse]
im•pair′er, n.
im•pair′ment, n.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

impair


Past participle: impaired
Gerund: impairing

Imperative
impair
impair
Present
I impair
you impair
he/she/it impairs
we impair
you impair
they impair
Preterite
I impaired
you impaired
he/she/it impaired
we impaired
you impaired
they impaired
Present Continuous
I am impairing
you are impairing
he/she/it is impairing
we are impairing
you are impairing
they are impairing
Present Perfect
I have impaired
you have impaired
he/she/it has impaired
we have impaired
you have impaired
they have impaired
Past Continuous
I was impairing
you were impairing
he/she/it was impairing
we were impairing
you were impairing
they were impairing
Past Perfect
I had impaired
you had impaired
he/she/it had impaired
we had impaired
you had impaired
they had impaired
Future
I will impair
you will impair
he/she/it will impair
we will impair
you will impair
they will impair
Future Perfect
I will have impaired
you will have impaired
he/she/it will have impaired
we will have impaired
you will have impaired
they will have impaired
Future Continuous
I will be impairing
you will be impairing
he/she/it will be impairing
we will be impairing
you will be impairing
they will be impairing
Present Perfect Continuous
I have been impairing
you have been impairing
he/she/it has been impairing
we have been impairing
you have been impairing
they have been impairing
Future Perfect Continuous
I will have been impairing
you will have been impairing
he/she/it will have been impairing
we will have been impairing
you will have been impairing
they will have been impairing
Past Perfect Continuous
I had been impairing
you had been impairing
he/she/it had been impairing
we had been impairing
you had been impairing
they had been impairing
Conditional
I would impair
you would impair
he/she/it would impair
we would impair
you would impair
they would impair
Past Conditional
I would have impaired
you would have impaired
he/she/it would have impaired
we would have impaired
you would have impaired
they would have impaired
Collins English Verb Tables © HarperCollins Publishers 2011
ThesaurusAntonymsRelated WordsSynonymsLegend:
Verb1.impair - make worse or less effective; "His vision was impaired"
damage - inflict damage upon; "The snow damaged the roof"; "She damaged the car when she hit the tree"
2.impair - make imperfect; "nothing marred her beauty"
damage - inflict damage upon; "The snow damaged the roof"; "She damaged the car when she hit the tree"
defile, sully, taint, corrupt, cloud - place under suspicion or cast doubt upon; "sully someone's reputation"
blemish, deface, disfigure - mar or spoil the appearance of; "scars defaced her cheeks"; "The vandals disfigured the statue"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

impair

Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

impair

verb
To spoil the soundness or perfection of:
The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Translations
يُضْعِف
oslabitpoškodit
skadesvække
ront
skaîa, veikja
bojātkaitētpasliktinātiesvājināt

impair

[ɪmˈpɛəʳ] VT [+ health, relations] → perjudicar, afectar; [+ sight, hearing] → afectar, dañar; [+ ability] → mermar; [+ judgement] → afectar; [+ visibility] → reducir
impaired hearingproblemas mpl de audición
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

impair

[ɪmˈpɛər] vt
(= damage) → perturber
(= reduce) [+ ability, faculty] → réduire
Collins English/French Electronic Resource. © HarperCollins Publishers 2005

impair

vtbeeinträchtigen; hearing, sight alsoverschlechtern; relations also, healthschaden (+dat)
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

impair

[ɪmˈpɛəʳ] vt (health) → danneggiare, pregiudicare; (sight, hearing) → deteriorare, menomare; (visibility) → ridurre; (relations) → deteriorare
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

impair

(imˈpeə) verb
to damage, weaken or make less good. He was told that smoking would impair his health.
imˈpairment noun
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.

impair

v. dañar; debilitar, desmejorar.
English-Spanish Medical Dictionary © Farlex 2012

impair

vt dañar, perjudicar; impaired physician médico -ca mf a quien se le dificulta desempeñar su labor debido a enfermedad mental, alcoholismo o drogadicción
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in classic literature ?
"No State shall enter into any treaty, alliance, or confederation; grant letters of marque and reprisal; coin money; emit bills of credit; make any thing but gold and silver a legal tender in payment of debts; pass any bill of attainder, ex post facto law, or law impairing the obligation of contracts; or grant any title of nobility."
Bills of attainder, ex post facto laws, and laws impairing the obligation of contracts, are contrary to the first principles of the social compact, and to every principle of sound legislation.
But with the whale, these two sashes are separately inserted, making two distinct windows, but sadly impairing the view.