Meaning of ABNORMAL in English

ABNORMAL

I. (ˌ)ab-ˈnȯr-məl, əb- adjective

Etymology: alteration of French anormal, from Medieval Latin anormalis, from Latin a- + Late Latin normalis normal

Date: circa 1836

: deviating from the normal or average : unusual , exceptional

abnormal behavior

• ab·nor·mal·ly -mə-lē adverb

II. noun

Date: 1912

: an abnormal person

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.