Definition of abnormal
(Entry 1 of 2)
: deviating from the normal or average
a person with abnormal [=exceptional] strength abnormal powers of concentration
often
: unusual in an unwelcome or problematic way
abnormal behavior abnormal test results
abnormal
nounDefinition of abnormal (Entry 2 of 2)
: an abnormal person
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Merriam-Webster unabridged
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Time Traveler for abnormal
The first known use of abnormal was in 1817
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