aberration

Definitions

A departure from what is normal, usual, or expected, typically one that is unwelcome.

A characteristic that deviates from the normal type.

The failure of rays to converge at one focus because of a defect in a lens or mirror.

Examples

The sudden drop in temperature was a seasonal aberration that surprised the local farmers.

His uncharacteristic outburst during the meeting was seen as a temporary aberration in his otherwise professional behavior.

Synonyms

anomaly deviation irregularity abnormality divergence peculiarity quirk

Antonyms

normality regularity conformity standard consistency uniformity typicality