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anomalous

/əˈnɒm.ə.ləs/
IELTSAcademic
adjective

Different from what is normal or expected. It often describes something unusual in a pattern, system, result, or behaviour.

  • The test result was anomalous.
  • We noticed an anomalous pattern in the data.
  • Such weather is anomalous for July.

Adinary Nuance

Anomalous is stronger and more formal than 'unusual'. It usually suggests a clear difference from a pattern, not just something odd. Writers often choose it for data, science, and academic contexts. If you want a softer everyday word, use 'strange' or 'unusual' instead.

In other languages

Vietnamese
bất thường
Spanish
anómalo
Chinese
异常
Japanese
異常な
Korean
비정상적인

Etymology

Anomalous comes from Greek anomalos, meaning 'uneven' or 'irregular'. It entered English through Latin and French in the 1600s.

Common phrases

anomalous resultanomalous behaviouranomalous dataanomalous pattern

Synonyms

Related words

Frequently asked questions

Is anomalous formal or informal?
It is fairly formal and common in academic, scientific, and business writing.
What is the difference between anomalous and unusual?
Unusual means not common. Anomalous suggests a clear break from a normal pattern.
Can I use anomalous in everyday conversation?
Yes, but it may sound serious or technical. 'Odd' or 'strange' is more natural in casual speech.
Is anomalous used in IELTS writing?
Yes. It is useful when you describe data, trends, results, or patterns.