not normal, average, typical, or usual; deviating from a standard: abnormal powers of concentration; an abnormal amount of snow; abnormal behavior.
extremely or excessively large: abnormal profit.
- ab·nor·mal·ly, adverb
- ab·nor·mal·ness, noun
- su·per·ab·nor·mal, adjective
- su·per·ab·nor·mal·ly, adverb
- abnormal , subnormal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use abnormal in a sentence
A clip shared Tuesday shows Spot Enterprise in action around a warehouse, taking thermal readings and investigating abnormal sounds.Boston Dynamics adds an ‘arm’ to its robotic dog Spot | Dalvin Brown | February 4, 2021 | Washington Post
When Morsell was 8 years old, his older brother collapsed during a scrimmage, and doctors discovered an abnormal valve in his heart.Darryl Morsell’s parents attended his first 97 Maryland games. The pandemic ended the streak. | Emily Giambalvo | February 4, 2021 | Washington Post
He hoped my dad might respond to a medication for his suddenly abnormal liver levels, one that would be given through a nasogastric tube.
The year 2020 was so abnormal, so disconnected, that it was easy to forget that the weather was strange, too.Climate change has altered the winter season and the gardener’s sense of it | Adrian Higgins | January 6, 2021 | Washington Post
VOSD intern Brittany Cruz-Fejeran and I dug into the cases to see if the arrests were as abnormal as they seemed, compared to historical norms.Terrible Year, Great Discoveries: Our Favorite Stories of 2020 | Randy Dotinga | December 24, 2020 | Voice of San Diego
These numbers are partly due to an abnormally high number of traffic deaths.New Social Progress Index Ranks U.S. 16th Out of 132 Countries | Brandy Zadrozny | April 3, 2014 | THE DAILY BEAST
In other words, we feel that we are moving at a slow, stately rate through a universe whose contents have been abnormally slowed.
“If their DNA is damaged at exactly the right place, they start behaving abnormally,” says Brawley.How Robin Roberts’ Breast Cancer Treatment Could Cause More Cancer | Casey Schwartz | June 12, 2012 | THE DAILY BEAST
Fingernails do not grow after death but the skin does shrink, "making the nails look abnormally long and clawlike."
Unemployment may be abating, but it's still abnormally high.
The face of the seated man was lowered, but from under heavy brows his abnormally large eyes regarded her fixedly.Dope | Sax Rohmer
Bobby said that that knuckle of Gee Gees middle finger had been abnormally developed by continued bringing the class to order.The Girls of Central High on the Stage | Gertrude W. Morrison
The feet and hands were abnormally large, and the clothing of the thing was old, baggy, and covered with filth.The Diary of Philip Westerly | Paul Compton
Steam yachts having abnormally high speed are occasionally seen in a large yachting fleet.Yachting Vol. 2 | Various.
In his lucid intervals, he was accustomed to be almost abnormally solemn and respectable.The Gold Bat | P. G. Wodehouse
British Dictionary definitions for abnormal
not normal; deviating from the usual or typical; extraordinary
informal odd in behaviour or appearance; strange
- abnormally, adverb
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