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 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 There were no high-fives, an abnormality for athletes. David J. Kim, The Courier-Journal, "While JCPS schools wait for June 29, other teams begin practicing for the first time," 15 June 2020 That’s because hydroxychloroquine can cause dangerous heart rhythm abnormalities. Karen Weintraub, USA TODAY, "'Hydroxychloroquine is useless': Doctors want drug for autoimmune patients, not COVID-19," 19 May 2020 Some of the hospital’s earlier critical patients had also received hydroxychloroquine as part of clinical trials (which the FDA recently warned can cause dangerous heart-rhythm abnormalities). Erika Hayasaki, The Atlantic, "One Woman’s Quest to Donate Plasma to Her Husband," 5 May 2020 But it's been made through history to be a [negative] symbol of inferiority and abnormality. al, "Alabama artist’s sculpture on display in Chicago park," 17 Jan. 2020 Therapies and treatments have been discovered for diseases and congenital abnormalities that once were life-threatening. Katherine Rafferty, The Conversation, "Parents of medically fragile children and their kids could use help, understanding year-round," 17 Dec. 2019 One reason early neurodevelopmental abnormalities do not necessarily cause symptoms is that one region of the brain can compensate for deficits in another. Sharon Begley, Scientific American, "Research Using Brains-in-a-Dish Forces a Radical Rethinking of Huntington’s Disease," 10 Dec. 2019 The disorder is known for causing skeletal abnormalities, and on occasion, vision and hearing issues. Amy Huschka, Detroit Free Press, "Adoptee with dwarfism accused of posing as child: Michigan bone scan says I'm 14," 6 Nov. 2019

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

5 Jul 2020

Cite this Entry

“Abnormality.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/abnormality. Accessed 12 Jul. 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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