• WordNet 3.6
    • v impair make worse or less effective "His vision was impaired"
    • v impair make imperfect "nothing marred her beauty"
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: Three million people in the United States have an impairment of the back or limbs that is a direct result of an accidental fall.
    • n Impair Diminution; injury.
    • a Impair Not fit or appropriate.
    • v. t Impair To grow worse; to deteriorate. "Every face . . . worsting ."
    • v. t Impair To make worse; to diminish in quantity, value, excellence, or strength; to deteriorate; as, to impair health, character, the mind, value. "Time sensibly all things impairs .""In years he seemed, but not impaired by years."
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: Motorists who talk on cell phones are more impaired than drunk drivers with blood-alcohol levels exceeding .08
    • impair To make worse; diminish in quantity, value, excellence, strength, or any other desirable quality; deteriorate; weaken; enfeeble: as, to impair the health or character; to impair one's fortune.
    • impair Synonyms To lessen, decrease, reduce, injure.
    • impair To become worse; be lessened or enfeebled; deteriorate.
    • n impair Diminution; decrease; loss; injury; disgrace.
    • impair Unequal; unworthy; unjust.
    • impair Not one of a pair; odd; unmatched.
    • n impair An impaired or odd thing; an article without a mate.
    • n impair In roulette, an odd number.
    • ***
Chambers's Twentieth Century Dictionary
    • v.t Impair im-pār′ to diminish in quantity, value, or strength: to injure: to weaken
    • v.i Impair (obs.) to become worse
    • adj Impair im-pār′ (Shak.) unsuitable.
    • ***


  • Seneca
    “Consult your friend on all things, especially on those which respect yourself. His counsel may then be useful where your own self-love might impair your judgment.”
  • Jean De La Bruyere
    “Avoid lawsuits beyond all things; they pervert your conscience, impair your health, and dissipate your property.”
  • John F. Kennedy
    “The ignorance of one voter in a democracy impairs the security of all.”
  • Theodore Roosevelt
    “The nation behaves well if it treats the natural resources as assets which it must turn over to the next generation increased, and not impaired, in value.”


Webster's Revised Unabridged Dictionary
OE. empeiren, enpeiren, OF. empeirier, empirier, F. empirer, LL. impejorare,; L. pref. im-, in + pejorare, to make worse, fr. pejor, worse. Cf. Appair
Chambers's Twentieth Century Dictionary
Fr.,—L. imparin, not, par, equal.


In literature:

It had impaired the perfection of his most notable triumph.
"The Roll-Call" by Arnold Bennett
And it was somewhat impaired by the other fact that he had been ass enough to tell the police.
"Mr. Prohack" by E. Arnold Bennett
Nor, in the seventh place, did the assembly impair the functions of justice, or intend or tend to do so.
"The Wearing of the Green" by A.M. Sullivan
But in leaving this option to the states, the constitution has, in no manner, impaired the force of facts.
"A Residence in France" by J. Fenimore Cooper
It did not impair the firmness of his will.
"The Promise Of American Life" by Herbert David Croly
The abuse of tobacco leads to impairment of vision in the growing youth.
"Scientific American Supplement No. 822" by Various
Not less unjust are laws impairing the obligation of contracts.
"The Government Class Book" by Andrew W. Young
The life of the voice will be impaired by such injurious practice.
"Vocal Mastery" by Harriette Brower
Will the brotherly affection of the Kauravas ever be impaired?
"The Mahabharata of Krishna-Dwaipayana Vyasa, Volume 1"
We did not impair the monarchy.
"The Works of the Right Honourable Edmund Burke, Vol. III. (of 12)" by Edmund Burke
According to Newman the authority of the Church should never have been impaired in the Reformation.
"Edward Caldwell Moore" by Edward Moore
The will in criminals, when it is not impaired by disease, is, in the main, dominated by a boundless egoism.
"Crime and Its Causes" by William Douglas Morrison
Yet his health and vigor of mind are scarcely impaired, and his zeal continues unabated.
"Adèle Dubois" by Mrs. William T. Savage
The solemnity of the scene is by no means impaired by the numerous dogs, which are gathering to see what they can snatch up.
"Unknown Mexico, Volume 1 (of 2)" by Carl Lumholtz
But if you further impair it with your bad articles, I know not what is to become of him or of it.
"Notes on Nursing" by Florence Nightingale
Otherwise, the efficiency of the draft is materially impaired.
"If You're Going to Live in the Country" by Thomas H. Ormsbee and Richmond Huntley
He fell into impaired health, and died on the 23d of September 1814, in the fifty-third year of his age.
"The Modern Scottish Minstrel , Volume I." by Various
He fell into impaired health, and died on the 23d of September 1814, in the fifty-third year of his age.
"The Modern Scottish Minstrel, Volumes I-VI." by Various
His candidacy plainly impaired the high respect which his conduct and abilities had brought him.
"A Political History of the State of New York, Volumes 1-3" by DeAlva Stanwood Alexander
Moth and rust can not impair the treasure.
"My Daily Meditation for the Circling Year" by John Henry Jowett

In poetry:

Not e'en a crown shall pass to heav'n,
Save that which virtue wears;
Her diadem for ever shines,
Nor time its worth impairs.
"Address To Solitude" by Elizabeth Bath
The youthful joys of vanish'd years,
The joys e'en now we share,
Have something of a sacred bliss,
Which time can not impair.
"To A Friend - -" by Thomas Frederick Young
Has Time a changeling made of thee?
Oh! no; and thou art all to me:
He bares the forest, but his pow'rs
Impair not love like ours.
"Song II" by Sir John Carr
Self-saviours none could ever be
By faith, or grace of theirs;
Their fruitless toil, so high that flee,
Thy Husband's praise impairs.
"The Believer's Jointure : Chapter II." by Ralph Erskine
Wit, that no sufferings could impair,
Was thine, and thine those mental powers
Of force to chase the fiends that tear
From Fancy's hands her budding flowers.
"Verses, On The Death Of The Same Lady" by Charlotte Smith
Yet why should reflection's imbittering pow'r
The charms of the present impair,
And why should the bloom of the bright-passing hour
Grow pale at the frown of despair ?
"Summer" by Laura Sophia Temple

In news:

It also appears to cause thinning of certain regions of the brain, which may lead to cognitive impairments, a study shows.
LUMBERTON — An investigator for the Columbus, Bladen and Brunswick District Attorney's Office has pleaded guilty to driving while impaired in Robeson County, according to court documents.
The enforcement effort is designed to remove impaired drivers from the roadways as well as pressure those celebrating the holiday to make safe transportation decisions, such as calling a cab or designating a sober driver.
Deputies saturated the county looking for motorists suspected of driving impaired, people not wearing seat belts and drivers not obeying the speed limit.
In chronic heart failure (CHF), impaired pulmonary function can independently contribute to oxygen desaturation and reduced physical activity.
Jot Purewal, a visually impaired 11-year-old was struggling in her classes at John Sutter Elementary in Santa Clara.
RCMP have arrested a 17-year-old boy for impaired driving.
Patients who experience a septic infection are at risk of developing mental and physical impairments later in life, a new study suggests.
Sleep deprivation impairs memory.
With a tendency to stare zombie-like and run into stationary objects, a new species of impaired motorist is hitting the roads: the Ambien driver.
"Our deputies will stop traffic and conduct various test procedures looking for impaired drivers," said Sheriff Bill Cameron.
As Execution Looms, Texas Debates Steinbeck And What's Mentally Impaired.
Margie Stocker from Clovernook Center for the Blind and Visually Impaired.
The American Printing House for the Blind is a treasure trove of educational insights, even if your child is not visually impaired.
PERCENT OF IMPAIRED STREAM MILES AFFECTED Only 16% of the nation's 3.5 million miles of streams has been assessed for water quality.

In science:

People with cognitive impairment were interviewed twice within one week in order to determine stability and accuracy of responses.
Human Information Processing with the Personal Memex
These results point to the idea of using multimodal feedback mechanism while designing for the visually impaired.
Human Information Processing with the Personal Memex
The ability to search and retrieve are major concerns for the cognitively and visually impaired population while accessing the internet.
Human Information Processing with the Personal Memex
With lot of graphics being included in the internet, the Steve Murphy tries to evaluate the usability of internet from the perspective of the cognitively and visually impaired.
Human Information Processing with the Personal Memex
The Scalable Vector Graphics (SVG) solution addresses many challenges for visually impaired people.
Human Information Processing with the Personal Memex
It investigated learning characteristics of sight impaired students and considerations they may need.
Human Information Processing with the Personal Memex
The paper concentrates on memory impairment, and cognitive and visual impairment.
Human Information Processing with the Personal Memex
The paper suggests a method of non-invasive prosthetic devices for sensory impaired people is proposed.
Human Information Processing with the Personal Memex
These prosthetic devices are based on the transformation of inaccessible stimulus to impaired sensory modalities.
Human Information Processing with the Personal Memex
Build and tested a prosthetic device for the visually impaired. 2.
Human Information Processing with the Personal Memex
Since we are dealing with a population that is visually impaired, we should be really concentrating on the interface design (view).
Human Information Processing with the Personal Memex
There will be lot of differences in designing for this group depending on whether the visual impairment was acquired or if it was present at birth.
Human Information Processing with the Personal Memex
Here pi is probability whose (finite) distribution runs over N values, and K is a constant depending on the choice of units (essentially entropy is a dimensionless quantity, so taking K=1 does not impair the general behavior of that quantity).
Defining Complexity: A Commentary to a paper by Charles H. Bennett
As argued in , this scheme is capable of completely impairing Eve in modulo-additive channels.
Randomization for Security in Half-Duplex Two-Way Gaussian Channels
The performance of cognitive radio sensing system is drastically impaired, when various wireless channels e.g., detecting, reporting, and inter-user channels have uncertainty .
Green Cellular Networks: A Survey, Some Research Issues and Challenges