Definition of aberrant
- aberrant misfits
a year of aberrant weather—record rainfall in the summer, record heat in the autumn
aberrant behavior can be a sign of rabies in a wild animal
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'aberrant.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Something aberrant has wandered away from the usual path or form. The word is generally used in a negative way; aberrant behavior, for example, may be a symptom of other problems. But the discovery of an aberrant variety of a species can be exciting news to a biologist, and identifying an aberrant gene has led the way to new treatments for diseases.
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