# aberrative

CEFR C1 · Adjective

Source: https://englishreference.com/word/aberrative
Updated: 2026-05-18

## Definition

describing something that is very different from what is normal or expected. It is often used to describe behavior or results that are unusual or strange.

For teachers: deviating from a normal or expected pattern; abnormal or unusual. Often used in technical or scientific contexts to describe data or behavior that falls outside the standard range.

## Examples

- The scientist noted several aberrative results in the final data set.
- The company's sudden decision to change its entire marketing strategy was seen as aberrative by its long-time investors.
- While most patients responded well to the treatment, a small number of aberrative cases required a more aggressive approach to manage the side effects effectively.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.