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

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 Next, the man received the stem cell transplant from the donor with an HIV-resistant genetic abnormality. Benjamin Ryan, NBC News, 27 July 2022 It’s a fatal chromosomal abnormality that results in miscarriage or stillbirth the vast majority of the time. Jessica Mathews, Fortune, 11 July 2022 The complication, a chromosomal abnormality known as Edwards syndrome, generally results in fetal death, or only brief survival for a baby carried to full term. Laura Kingstaff Writer, Los Angeles Times, 11 July 2022 Pistorius was born in Johannesburg, South Africa, with a congenital abnormality that left him without a fibula bone in either of his lower legs. Fox News, 8 July 2022 Stanford researchers said this could help with sleep abnormality research in the future. Clare Mulroy, USA TODAY, 8 July 2022 So far in 2022, 263 women terminated their pregnancies in Florida due to a serious fetal genetic defect, deformity or abnormality, according to the Agency for Health Care Administration. Cindy Krischer Goodman, Sun Sentinel, 30 June 2022 And a bill in Texas to prohibit abortions based on fetal abnormality was brought up for a committee vote after the House had recessed and Democrats were absent. New York Times, 25 June 2022 Nishani was physically not fully fit after surgery in 2008 for a cerebral cavernoma, a vascular abnormality of the central nervous system, according to his physician Dr. Mentor Petrela. Llazar Semini, ajc, 28 May 2022 See More

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.

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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Dictionary Entries Near abnormality




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Statistics for abnormality

Last Updated

11 Aug 2022

Cite this Entry

“Abnormality.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/abnormality. Accessed 13 Aug. 2022.

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More Definitions for abnormality


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

More from Merriam-Webster on abnormality

Nglish: Translation of abnormality for Spanish Speakers

Britannica English: Translation of abnormality for Arabic Speakers


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