illness

play
noun ill·ness \ˈil-nəs\

Definition of illness

  1. 1 obsolete a :  wickednessb :  unpleasantness

  2. 2a :  an unhealthy condition of body or mindb :  sickness 2

Examples of illness in a Sentence

  1. Her body was not able to defend itself against illness.

  2. Hundreds of soldiers died from illness and hunger.

  3. He showed no signs of illness.

  4. Scientists have not yet found a cure for this illness.

  5. cancer, diabetes, and other illnesses

  6. She died at the age of 60 after a brief illness.

First Known Use of illness

circa 1500


ILLNESS Defined for English Language Learners

illness

play
noun

Definition of illness for English Language Learners

  • : a condition of being unhealthy in your body or mind

  • : a specific condition that prevents your body or mind from working normally : a sickness or disease


ILLNESS Defined for Kids

illness

play
noun ill·ness \ˈil-nəs\

Definition of illness for Students

  1. 1 :  an unhealthy condition of the body or mind Germs can cause illness.

  2. 2 :  a specific sickness or disease Colds are a common illness.


Medical Dictionary

illness

play
noun ill·ness \ˈil-nəs\

Medical Definition of illness

  1. :  an unhealthy condition of body or mind :  sickness



Seen and Heard

What made you want to look up illness? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to fight against or to call in question

Get Word of the Day daily email!

Test Your Vocabulary

Time Traveler Quiz: Which Word Came First?

  • time-traveler-quiz-which-word-came-first
  • Which came first?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!