ab·​nor·​mal·​i·​ty | \ ˌab-nər-ˈma-lə-tē How to pronounce abnormality (audio) , -(ˌ)nȯr- \
plural abnormalities

Definition of abnormality

1 : something abnormal
2 : the quality or state of being abnormal

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Synonyms & Antonyms for abnormality



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Examples of abnormality in a Sentence

The test results showed several genetic abnormalities. There was some abnormality in his vision.
Recent Examples on the Web While being checked for a stomach illness thought to be associated with the change in altitude, Jones was found to have an anomalous coronary artery, a congenital heart abnormality. Mark Inabinett | Minabinett@al.com, al, "Cyrus Jones hopes to play again after heart surgery," 23 Sep. 2020 The researchers showed that 78 percent of people who had recovered from COVID-19 (including many who had never been hospitalized) still had some kind of heart abnormality that was detectable on MRI scans two months later. Ed Yong, The Atlantic, "The Core Lesson of the COVID-19 Heart Debate," 21 Sep. 2020 My concern is that ‘disorder’ – by definition signalling abnormality – may make some women feel more out of control; that a monster within is always waiting to bare its teeth. Eleanor Morgan, refinery29.com, "What Causes PMDD? Yeah, They Don’t Know," 10 Sep. 2020 Linebacker Cameron Smith is on the mend following a successful operation to repair a heart abnormality that was discovered through coronavirus testing. Jason Duaine Hahn, PEOPLE.com, "Vikings Star Has Open Heart Surgery After False Coronavirus Diagnosis Discovers Defect," 26 Aug. 2020 Instead, the doctors noticed an abnormality during the sonogram. Julie Mazziotta, PEOPLE.com, "Twins Survive After Developing Rare Condition in the Womb: ‘They’re Such Miracle Baby Fighters’," 25 Aug. 2020 My 17-year-old son, Emerson, was born with a chromosome abnormality and only has some language. Candi Carter As Told To Lizz Schumer, Good Housekeeping, "My Son May Have Special Needs, But Kids Like Him Can Still Make Friends," 18 Aug. 2020 The study, conducted in Germany and composed of middle-aged adults, found that 78 percent of the 100 participants had some cardiac abnormality. John Talty | Jtalty@al.com, al, "How a cardiologist may have saved the college football season," 18 Aug. 2020 Vaccinated piglets grow well, with no clinical abnormality, while most sows have no miscarriages. Bloomberg.com, "China’s African Swine Fever Vaccine Shows Progress in Trials," 21 June 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'abnormality.' 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 abnormality

1847, in the meaning defined at sense 1

History and Etymology for abnormality

abnormal entry 1 + -ity

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Time Traveler for abnormality

Time Traveler

The first known use of abnormality was in 1847

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Statistics for abnormality

Last Updated

27 Sep 2020

Cite this Entry

“Abnormality.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/abnormality. Accessed 19 Oct. 2020.

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More Definitions for abnormality


How to pronounce abnormality (audio)

English Language Learners Definition of abnormality

: something that is not usual, expected, or normal : something that is abnormal


ab·​nor·​mal·​i·​ty | \ ˌab-nər-ˈma-lə-tē How to pronounce abnormality (audio) \
plural abnormalities

Kids Definition of abnormality

: something that is not usual, expected, or normal The X-ray showed no abnormalities.


ab·​nor·​mal·​i·​ty | \ ˌab-nər-ˈmal-ət-ē, -(ˌ)nȯr- How to pronounce abnormality (audio) \
plural abnormalities

Medical Definition of abnormality

1 : the quality or state of being abnormal
2 : something abnormal brain-wave abnormalities

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