Anomaly

noun /əˈnɒm.ə.li/ — Something that deviates from the expected pattern.

Definition

Something that deviates from what is standard, normal, or expected; an irregularity or inconsistency that stands apart from the surrounding pattern.

Beyond the definition

Anomaly carries the quiet electricity of the thing that doesn't fit. In data it's a red flag; in a person it's what makes them interesting. The anomaly is the crack in the pattern — and often the most important thing in the room.

Origin & history

From Greek anomalos ('uneven, irregular'), from an- ('not') + homalos ('even'). Literally: the uneven one.

Example sentences

Illustrative sentences for learning, not verified community posts or sourced quotations.

The sudden drop in temperature was an anomaly for midsummer.

With her quiet nature, she was an anomaly in her exuberant family.

Scientists flagged the data point as an anomaly requiring further investigation.

How to use it

This entry uses a noun. Follow the examples for articles and singular or plural forms; not every noun takes “a” or “an.”

Choose “Anomaly” when the meaning fits your context: Something that deviates from what is standard, normal, or expected; an irregularity or inconsistency that stands apart from the surrounding pattern.

Synonyms

aberration, abnormality, deviation, irregularity, oddity

Antonyms

norm, regularity, conformity, standard

Related words

  • aberration
  • outlier
  • irregularity
  • deviation

Anomaly vs aberration

An aberration can describe both a statistical deviation and a moral or behavioural departure from a norm — 'his cruelty was an aberration, out of character'. Anomaly is more neutral and data-oriented: something that simply doesn't fit the pattern, without necessarily implying it shouldn't. A scientist looks for anomalies in data; a judge considers whether behaviour was an aberration. Anomaly is descriptive; aberration can carry a note of judgment.

Word in the Wild

See how this word appears in life, language and stories.

Illustrative sentences and imagined stories for learning — not verified sightings, interviews, or sourced quotations.

Fictional scene

Isolated figure in busy office

Conceptual illustration: An adult stands in the middle of a bustling, modern office, feeling entirely disconnected and confused, as if they don't share the same reality as the colleagues around them. The lighting is bright and cold, emphasizing their isolation.

An adult stands in a bustling modern office, looking confused and disconnected while colleagues around them move in a different way.

The figure stands out as an irregularity against the surrounding pattern of activity. The visual disconnect illustrates an anomaly—someone who does not fit the standard, expected rhythm of the environment they inhabit.

Image credit: Wordspun · AI-generated conceptual illustration

Questions about this word

What does "Anomaly" mean?

Anomaly is noun meaning: Something that deviates from the expected pattern.. Something that deviates from what is standard, normal, or expected; an irregularity or inconsistency that stands apart from the surrounding pattern.

Where does the word "Anomaly" come from?

From Greek anomalos ('uneven, irregular'), from an- ('not') + homalos ('even'). Literally: the uneven one.

Discover more words on Wordspun