Synonyms

abnormal

American

[ab-nawr-muhl] / æbˈnɔr məl /

adjective

not normal, average, typical, or usual; deviating from a standard.

abnormal powers of concentration; an abnormal amount of snow; abnormal behavior.

Synonyms:

odd, unnatural, deviant, irregular, aberrant, anomalous
extremely or excessively large.

abnormal profit.

abnormal British

/ æbˈnɔːməl /

adjective

not normal; deviating from the usual or typical; extraordinary
informal odd in behaviour or appearance; strange

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Related Words

See irregular.

Other Word Forms

abnormally adverb
abnormalness noun
superabnormal adjective
superabnormally adverb

Etymology

Origin of abnormal

First recorded in 1850–55; ab- + normal; replacing anormal, from Medieval Latin anōrmālus, variant of anōmālus anomalous, influenced by Latin norma norm

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The team found that three holidays in particular—including Presidents Day—“are more likely to yield positive abnormal returns.”

From Barron's

There was a small rise of about 0.1% in abnormal liver blood test results among people taking statins.

From Science Daily

Through an abnormal valve, excessive blood also flows to the lungs, which can cause heart failure.

From BBC

This condition includes overweight and obesity, high blood pressure, abnormal cholesterol levels, and insulin resistance.

From Science Daily

Bithumb said it would improve verification systems and introduce AI to detect abnormal transactions.

From BBC

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023