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1

ill

play
adjective \ˈil\

Simple Definition of ill

  • : not well or healthy : sick or unhealthy

  • of health : not normal or good

  • : harmful or damaging

Source: Merriam-Webster's Learner's Dictionary

Full Definition of ill

worse

play play \ˈwərs\

worst

play play \ˈwərst\
  1. 1 a chiefly Scottish :  immoral, vicious b :  resulting from, accompanied by, or indicative of an evil or malevolent intention <ill deeds> c :  attributing evil or an objectionable quality <held an ill opinion of his neighbors>

  2. 2 a :  causing suffering or distress <ill weather> b comparative also iller superlative also illest (1) :  not normal or sound <ill health> (2) :  not in good health; also :  nauseated

  3. 3 a :  not suited to circumstances or not to one's advantage :  unlucky <an ill omen> b :  involving difficulty :  hard

  4. 4 a :  not meeting an accepted standard <ill manners> b archaic :  notably unskillful or inefficient

  5. 5 :  unfriendly, hostile <ill feeling>

Examples of ill in a sentence

  1. That dog can eat almost anything with no ill effects.

  2. They had been subjected to months of ill treatment.



Origin and Etymology of ill

Middle English, from Old Norse illr


First Known Use: 12th century


2

ill

adverb

Simple Definition of ill

  • : in a bad or imperfect way

  • : in an unfavorable or unkind way

Source: Merriam-Webster's Learner's Dictionary

Full Definition of ill

worse

worst

  1. 1 a :  with displeasure or hostility b :  in a harsh manner c :  so as to reflect unfavorably <spoke ill of the neighbors>

  2. 2 :  in a reprehensible manner

  3. 3 :  hardly, scarcely <can ill afford such extravagances>

  4. 4 a :  in an unfortunate manner :  badly, unluckily <ill fares the land … where wealth accumulates, and men decay — Oliver Goldsmith> b :  in a faulty, inefficient, insufficient, or unpleasant manner —often used in combination <the methods used may be ill-adapted to the aims in view — R. M. Hutchins>


3

ill

noun

Simple Definition of ill

  • : bad or unlucky things

  • : a sickness or disease

  • ills : troubles or problems

Source: Merriam-Webster's Learner's Dictionary

Full Definition of ill

  1. 1 :  the reverse of good :  evil

  2. 2 a :  misfortune, distress b (1) :  ailment, sickness (2) :  something that disturbs or afflicts :  trouble <economic and social ills>

  3. 3 :  something that reflects unfavorably <spoke no ill of him>

Examples of ill in a sentence

  1. <chicken pox and the other ills that were once a fixture of childhood>

  2. <idealistic people who try to cure all of our society's ills>



13th Century

First Known Use of ill

13th century


4

ill

abbreviation

Definition of ill

  1. illustrated; illustration; illustrator




Ill

abbreviation

Definition of Ill

  1. Illinois




Ill

play
geographical name \ˈēl\

Definition of Ill

  1. river 129 miles (208 kilometers) NE France flowing into the Rhine





ILL Defined for Kids

1

ill

play
adjective \ˈil\

Definition of ill for Students

worse

\ˈwərs\

worst

\ˈwərst\
  1. 1 :  not in good health :  sick <an ill person>

  2. 2 :  not normal or sound <ill health>

  3. 3 :  meant to do harm :  evil <ill deeds>

  4. 4 :  causing suffering or distress <ill weather>

  5. 5 :  not helpful <He was plagued by ill luck.>

  6. 6 :  not kind or friendly <ill intentions>

  7. 7 :  not right or proper <ill manners>




2

ill

play
adverb

Definition of ill for Students

worse

worst

  1. 1 :  with displeasure or anger <The remark was ill received.>

  2. 2 :  in a harsh or unkind way <The animals were ill treated.>

  3. 3 :  scarcely 1, hardly <He can ill afford it.>

  4. 4 :  in a bad or faulty way <They're ill-prepared to face the winter.>




3

ill

play
noun

Definition of ill for Students

  1. 1 :  the opposite of good <Things will change for good or ill.>

  2. 2 :  a sickness or disease <childhood ills>

  3. 3 :  1trouble 2 <society's ills>




Medical Dictionary

1

ill

play
adjective \ˈil\

Medical Definition of ill

worse

\ˈwərs\play also

iller

\ˈil-ər\play ;

worst

\ˈwərst\play
  1. 1:  affected with some ailment :  not in good health <incurably ill with cancer—Time> <mentally ill>

  2. 2:  affected with nausea often to the point of vomiting <thought she would be ill after the ride on the roller coaster>




2

ill

noun

Medical Definition of ill

  1. :  ailment, sickness <chicken pox and other ills of childhood>




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