• WordNet 3.6
    • v worsen grow worse "Conditions in the slum worsened"
    • v worsen make worse "This drug aggravates the pain"
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Webster's Revised Unabridged Dictionary
    • Worsen To get the better of; to worst.
    • v. i Worsen To grow or become worse. "Indifferent health, which seemed rather to worsen than improve."
    • Worsen To make worse; to deteriorate; to impair. "It is apparent that, in the particular point of which we have been conversing, their condition is greatly worsened ."
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Century Dictionary and Cyclopedia
    • worsen To grow worse; deteriorate.
    • worsen To make worse; cause to deteriorate.
    • worsen To obtain advantage of.
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Chambers's Twentieth Century Dictionary
    • v.i Worsen to grow worse
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Chambers's Twentieth Century Dictionary
A.S. wyrsa, from wiers-sa from wirsiza (Goth. wairsiza), formed with comp. suffix -iz from a Teut. root wers, found in Ger. ver-wirren, to confuse.


In literature:

He will start at once lest the storm worsens.
"The Path of the King" by John Buchan
I'll tell 'em how you slung me around and said I was worsen a dirty dog like Lad.
"Further Adventures of Lad" by Albert Payson Terhune
You couldn't botch it worsen Hammer has, and you might do some good.
"Mr. Crewe's Career, Complete" by Winston Churchill
I will inform you all, and call you back If things should worsen here.
"The Dynasts" by Thomas Hardy
The wind was worsening, if anything, and we continued to drive at a frightful angle.
"News from the Duchy" by Sir Arthur Thomas Quiller-Couch
Even bad news would be worsened if he had to hear it from those lips.
"A Book of Quaker Saints" by Lucy Violet Hodgkin
At eight o'clock the Duke's situation was worsened.
"The Ontario Readers: The High School Reader, 1886" by Ministry of Education
At eight o'clock the Duke's situation was worsened.
"The Young Duke" by Benjamin Disraeli
By the provisions of the present one, one of them is worsened, and the other bettered.
"The Maidens' Lodge" by Emily Sarah Holt
It not only strengthened Slavery, but also worsened its character.
"A History of the United States" by Cecil Chesterton

In news:

Billionaire Brothers' Sourcing Firm Says Core Profit Fell As World Economy Worsened .
Massachusetts health reforms haven't worsened economy, report says.
Scranton's pension fund situation worsened .
Scranton's pension funds, already severely distressed four years ago, have worsened .
Unusual weather worsened Chesapeake Bay's health.
Lack of oversight worsened crisis.
How Germany Gamed the Euro and Worsened the Crisis.
Some weather extremes worsened by climate change.
Slow Recovery Worsens Financial State of Medicare.
Deron Williams' wrist worsened since he was traded to Nets.
Snowy chaos worsened by poor regional coordination, officials say.
Economic Downturn Worsened at End of 2008.
Alabama consumers' credit scores are 48th in nation and worsening, report says (updated).
The number of consumers ditching their drugs at the pharmacy keeps climbing as the economy worsens.
Widespread Drought Is Likely to Worsen.

In science:

The apparent disagreement with CDM worsens if adiabatic compression of the dark matter by the infalling baryons is considered (Blumenthal et al. 1986).
Summary talk: How serious are the problems faced by CDM: cusps, thin disks, and halo substructure
Fourth, notice that the performance of the maximum or FDR-controlling methods worsens compared to HC∗ when γ → 0.
Higher criticism for detecting sparse heterogeneous mixtures
In quantum theory the situation only worsens.
Zeno meets modern science
Including NSNI can modify the characteristics of neutrino conversion, and in general large values of NSNI parameters worsen the quality of the fit to data.
Theory of Neutrinos: A White Paper
The purity of the argon liquid in H1 was monitored and was found to worsen at a very small, tolerable rate of 0.05 ppm per year.
Collider Physics at HERA