abnormal

adjective
ab·​nor·​mal | \ (ˌ)ab-ˈnȯr-məl How to pronounce abnormal (audio) , əb- \

Definition of abnormal

 (Entry 1 of 2)

: deviating from the normal or average a person with abnormal [=exceptional] strength abnormal powers of concentration often : unusual in an unwelcome or problematic way abnormal behavior abnormal test results

abnormal

noun

Definition of abnormal (Entry 2 of 2)

: an abnormal person

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Other Words from abnormal

Adjective

abnormally \ (ˌ)ab-​ˈnȯr-​mə-​lē How to pronounce abnormally (audio) , əb-​ \ adverb
behaving abnormally

Examples of abnormal in a Sentence

Adjective The results of the blood test were abnormal. a completely abnormal school day, because half of the kids were out sick
Recent Examples on the Web: Adjective The more abnormal the situation gets, the more normal our family seems. Kevin Fisher-paulson, SFChronicle.com, "A family built for times of crisis," 24 Mar. 2020 Chronic wasting disease is caused by an abnormal protein, or prion, that attacks the deer's nervous system. Paul A. Smith, Milwaukee Journal Sentinel, "Smith: SW Wisconsin CWD, deer and predator research project in final year of field work," 14 Mar. 2020 This illness occurs when a protein called PrP that is normally present in our brains changes shape into an abnormal form, called a prion. Scientific American, "The Married Researchers Racing to Stop Prion Disease," 29 Feb. 2020 The boy’s mother then heard him make an abnormal sound that woke her up. Bob Sandrick, cleveland, "Berea police officer saves life of 20-month-old boy," 27 Feb. 2020 When the report by a 19-member international team was released in July 2019, chief investigator Kok Soo Chon said during a media briefing there was no evidence of abnormal behavior or stress among the two pilots – Capt. Fox News, "Malaysia Airlines Flight 370 pilot suspected by 'top levels' of mass murder-suicide, ex-Aussie PM says," 20 Feb. 2020 The officer observed several other abnormal driving behaviors and a traffic stop was conducted. Houston Chronicle, "West University Place Police Department weekly report," 17 Feb. 2020 Neutrophils can even abet cancer, spurring growth of new blood vessels that feed tumors and helping the abnormal cells spread to other parts of the body. Mitch Leslie, Science | AAAS, "New drugs aim to disarm the immune system’s ‘atomic bomb’ cells," 5 Mar. 2020 In clinical trials, a significant proportion of people taking givosiran still experienced serious side effects, including chronic kidney disease, a high fever, and abnormal results on liver function tests. Kate Sheridan, STAT, "FDA approves Alnylam’s Givlaari, second-ever drug based on RNAi," 20 Nov. 2019

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

Adjective

1817, in the meaning defined above

Noun

1857, in the meaning defined above

History and Etymology for abnormal

Adjective

New Latin abnormis "deviating from the average" (going back to Medieval Latin, "not conforming to rule," going back to Latin, "belonging to no school of philosophy," from ab- ab- + norma "carpenter's rule, pattern") + -al entry 1 — more at norm

Noun

noun derivative of abnormal entry 1

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Time Traveler for abnormal

Time Traveler

The first known use of abnormal was in 1817

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Statistics for abnormal

Last Updated

27 Mar 2020

Cite this Entry

“Abnormal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/abnormal. Accessed 7 Apr. 2020.

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More Definitions for abnormal

abnormal

adjective
ab·​nor·​mal | \ ab-ˈnȯr-məl How to pronounce abnormal (audio) \

Kids Definition of abnormal

: differing from the normal usually in a noticeable way an abnormal growth

Other Words from abnormal

abnormally adverb abnormally small

abnormal

adjective
ab·​nor·​mal | \ (ˈ)ab-ˈnȯr-məl How to pronounce abnormal (audio) \

Medical Definition of abnormal

 (Entry 1 of 2)

: deviating from the normal, average, or expected abnormal development results of the Pap smear were abnormal abnormal actions departing from accepted standards of social behavior

Other Words from abnormal

abnormally \ -​mə-​lē How to pronounce abnormally (audio) \ adverb

abnormal

noun

Medical Definition of abnormal (Entry 2 of 2)

: an abnormal person

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Comments on abnormal

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