Definitions

abnormal

[ab-nawr-muhl] / æbˈnɔr məl /

ADJECTIVE

different from standard or norm

Synonyms

STRONGEST

aberrant anomalous atypical bizarre exceptional extraordinary irregular odd peculiar strange uncommon unexpected unnatural unusual weird

WEAK

anomalistic curious deviant deviate deviating divergent eccentric fantastic funny grody gross heteroclite heterodox heteromorphic off-base off-color out of line preternatural screwy spastic unorthodox

Antonyms

STRONGEST

common conforming conventional expected familiar normal ordinary regular standard usual

WEAK

customary straight

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.

In fact, studies suggest that around 10% receive a shock from their device after it detects an abnormal heart rhythm.

From BBC • Jun. 8, 2026

Dr Ernesto Maceira, a specialist who treated the Spaniard's foot, said the condition was caused by "abnormal forces that act on an immature bone" and attributed it to Nadal's intense training as a child.

From BBC • May 29, 2026

The team also observed abnormal metabolism inside the cells.

From Science Daily • May 27, 2026

“This is abnormal — I haven’t seen anything like this in my entire career,” Roos told MarketWatch.

From MarketWatch • May 17, 2026

He had a high fever and his blood count was abnormal.

From "Silent Spring" by Rachel Carson

Vocabulary lists containing abnormal

Lesson 1

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Cormac McCarthy's "The Road"

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"Modern Automotive Technology," Vocabulary from Section 6

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