worse

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective More inferior, as in quality, condition, or effect.
• adjective More severe or unfavorable.
• adjective Being further from a standard; less desirable or satisfactory.
• adjective Being in poorer health; more ill.
• noun Something that is worse.
• adverb In a worse manner; to a worse degree.
• idiom (for better or (for) worse) Whether the situation or consequences be good or ill.

from The Century Dictionary.

• To become worse.
• To worst; put to disadvantage; discomfit.
• In a more evil, wicked, severe, or disadvantageous manner; in a way that is less good, desirable, or favorable.
• In a less or lower degree; less.
• Less favorably or agreeably.
• With more severity, intensity, etc.; in a greater degree.
• The comparative of bad, evil, ill; more bad, evil, ill, unfortunate, or undesirable; less valuable or perfect; more unfavorable or unsuccessful; less well in health, or less well off in worldly circumstances. See bad, evil, and ill.
• Sometimes used substantively in the sense of something less good, desirable, fortunate, favorable, etc.
• In logic, having, as a proposition, a character which, if belonging to one of two or more premises, must also belong to the conclusion.

from the GNU version of the Collaborative International Dictionary of English.

• adverb In a worse degree; in a manner more evil or bad.
• Bad, ill, evil, or corrupt, in a greater degree; more bad or evil; less good; specifically, in poorer health; more sick; -- used both in a physical and moral sense.
• noun Loss; disadvantage; defeat.
• noun That which is worse; something less good.
• transitive verb To make worse; to put disadvantage; to discomfit; to worst. See worst, v.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• adjective comparative form of bad: more bad
• adjective this sense?) More ill.
• adjective this sense?) Of lower quality, less desirable.
• adjective this sense?) More severe or serious.
• adjective this sense?) More evil.
• adverb comparative form of badly: more badly
• adverb comparative form of ill: more ill
• adverb Less skillfully.
• adverb More severely or seriously.
• adverb Used to start a sentence.
• verb obsolete, transitive To make worse; to put at disadvantage; to discomfit.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun something inferior in quality or condition or effect
• adjective changed for the worse in health or fitness
• adverb (comparative of `ill') in a less effective or successful or desirable manner
• adjective (comparative of `bad') inferior to another in quality or condition or desirability