ill Definition

  • 1not in good health; sick or unwell
  • 2resulting from or caused by illness
  • 3evil or harmful in nature or effect

Using ill: Examples

Take a moment to familiarize yourself with how "ill" can be used in various situations through the following examples!

  • Example

    She is feeling ill and needs to rest.

  • Example

    The ill effects of smoking are well-known.

  • Example

    He has an ill temper and often gets angry.

  • Example

    The company's financial situation is looking ill.

ill Synonyms and Antonyms

Idioms Using ill

  • an ill wind

    a difficult or unpleasant situation that causes problems


    The economic downturn was an ill wind for many businesses.

  • to disapprove of something strongly


    The teacher takes a dim view of students who come to class ill-prepared.

  • to have a hidden motive or selfish reason for doing or being involved in something


    I think he has an axe to grind with the company, which is why he's been so critical of their decisions.

Phrases with ill

  • to become ill or sick


    She was taken ill with a high fever.

  • to become ill or sick


    He fell ill after eating the contaminated food.

  • wish someone ill

    to desire harm or misfortune to someone


    I don't wish him ill, but I also don't want to see him succeed.

Origins of ill

from Old English 'ylle'


Summary: ill in Brief

The adjective 'ill' [ɪl] refers to a state of poor health or sickness, as in 'She is feeling ill and needs to rest.' It can also describe something that results from or is caused by illness, such as 'The ill effects of smoking are well-known.' Additionally, 'ill' can denote something evil or harmful, as in 'He has an ill temper and often gets angry.' Common phrases include 'be taken ill' and 'fall ill,' while idioms like 'an ill wind' and 'take a dim view of something' convey negative situations.

How do native speakers use this expression?