# aberrational

/ˌæbɝˈeɪʃənəɫ/ (US) · CEFR C1 · Adjective

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

## Definition

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

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

## Examples

- The scientist noted several aberrational results in the final report.
- The team's performance was considered aberrational because they lost the game despite having a much stronger record.
- While most data points followed a predictable trend, the aberrational readings suggested a sudden shift in the local climate that required further investigation.

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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.