\ˈsik \

Definition of sick 

(Entry 1 of 2)

1a(1) : affected with disease or ill health : ailing

(2) : of, relating to, or intended for use in sickness took five sick days this month a sick ward

b : queasy, nauseated sick to one's stomach was sick in the car

c : undergoing menstruation

2 : spiritually or morally unsound or corrupt

3a : sickened by strong emotion sick with fear worried sick

b : having a strong distaste from surfeit : satiated sick of flattery

c : filled with disgust or chagrin gossip makes me sick

d : depressed and longing for something sick for one's home

4a : mentally or emotionally unsound or disordered : morbid sick thoughts

b : highly distasteful : macabre, sadistic sick jokes a sick crime

5 : lacking vigor : sickly: such as

a : badly outclassed made the competition look sick

b : incapable of producing profitable yields of a crop sick soils

6 slang : outstandingly or amazingly good or impressive Rookie was phenomenal Friday. His goal was nice, but the pass to twin brother, Chris, … was downright sick.— Roy Lang III



Definition of sick (Entry 2 of 2)


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Other Words from sick


sickly adverb

Synonyms & Antonyms for sick

Synonyms: Adjective

ailing, bad, down, ill, indisposed, peaked, peaky, poorly, punk, run-down, sickened, unhealthy, unsound, unwell

Antonyms: Adjective

hale, healthful, healthy, sound, well, whole, wholesome

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Examples of sick in a Sentence


He is at home sick in bed. She is sick with the flu. I'm too sick to go to work. The medicine just made me sicker. The sickest patients are in intensive care. My poor rosebush looks sick. She has been on the sick list all week. The way they treat people makes me sick.
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Recent Examples on the Web: Adjective

So far, 43 people in the US and 22 people in Canada are sick, according to a statement from the FDA. Rachel Becker, The Verge, "Romaine lettuce from California linked to E. coli outbreak," 27 Nov. 2018 But with more and more people getting sick, the US will need better solutions soon. Megan Molteni, WIRED, "We Have No Idea How Bad the US Tick Problem Is," 4 July 2018 On Sunday, the child's uncle Nicolas Godinez said his family had been sick with worry about her return. CBS News, "After being separated from daughter at border, mom warns illegal immigrants to "find another country"," 2 July 2018 The Chinese Foreign Ministry said that the government had already carried out an investigation in May after the first case of an American diplomat becoming sick in the city of Guangzhou was reported in April. Jane Perlez And Steven Lee Myers,, "China pledges to investigate US diplomats’ claims of sonic attacks," 7 June 2018 Created by a Harvard grad who was sick of suffering from the afternoon slump, IQ Bars are a high-fat and low-carb option to keep in your handbag. Michaela Bechler, Vogue, "The Best On-the-Go Snacks to Get Before Holiday Travel Season," 6 Nov. 2018 This flu season, Clorox is using data from smart thermometers to target ads to areas where people are sick. Recode Staff, Recode, "Recode Daily: Tim Cook wants a GDPR for the rest of the world," 24 Oct. 2018 He had been called in by Lee Anne Walters, a Flint mother with a sick child, to test the water at her home. CBS News, "The Flint water crisis: A loss of trust," 17 June 2018 If the lawsuit succeeds, the chasm between sick and healthy would return. Sarah Gantz,, "Ever been depressed? Had cancer? Preexisting conditions can define your future," 3 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sick.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of sick


before the 12th century, in the meaning defined at sense 1a(1)


1957, in the meaning defined above

History and Etymology for sick


Middle English sek, sik, from Old English sēoc; akin to Old High German sioh sick

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Statistics for sick

Last Updated

5 Dec 2018

Look-up Popularity

Time Traveler for sick

The first known use of sick was before the 12th century

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More Definitions for sick



English Language Learners Definition of sick

: affected with a disease or illness

: of or relating to people who are ill

: very annoyed or bored by something because you have had too much of it


\ˈsik \
sicker; sickest

Kids Definition of sick

1 : affected with disease or illness : not well

2 : of, relating to, or intended for use in or during illness sick pay

3 : affected with or accompanied by nausea The bobbing of the boat made me feel sick.

4 : badly upset by strong emotion I was sick with worry.

5 : annoyed or bored of something from having too much of it We were sick of his whining.

6 : filled with disgust or anger Such gossip makes me sick.


\ˈsik \

Medical Definition of sick 

1a : affected with disease or ill health

b : of, relating to, or intended for use in sickness a sick ward

c : affected with nausea : inclined to vomit or being in the act of vomiting sick to one's stomach was sick in the car

2 : mentally or emotionally unsound or disordered

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More from Merriam-Webster on sick

Rhyming Dictionary: Words that rhyme with sick

Thesaurus: All synonyms and antonyms for sick

Spanish Central: Translation of sick

Nglish: Translation of sick for Spanish Speakers

Britannica English: Translation of sick for Arabic Speakers

Comments on sick

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


to make faulty or ineffective

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