Aberration

The dictionary definition of “aberration” is a noun referring to a departure from what is normal, usual, or expected, typically one that is unwelcome. It can also refer to a deviation in the course or the expected standard, or a defect in a lens or mirror that causes a distorted image.

Use cases:
1. General: Describing an event or behavior that deviates from the norm.
2. Scientific: Referring to optical aberrations in lenses and mirrors.
3. Medical: Indicating a deviation from typical mental health or function.

Examples In Sentence:
1. The sudden drop in temperatures was an aberration from the typical weather patterns for this time of year.
2. His angry outburst was an aberration; he is usually very calm and composed.
3. The telescope’s image had a slight aberration, causing the stars to appear blurry.

Related words:
1. Anomaly
2. Deviation
3. Irregularity
4. Abnormality
5. Distortion