← BackshareGuessabnormal/æbˈnɔːrməl/adjectiveDifferent from what is usual or expected; not normal.It is abnormal for a baby to have a fever this high.The weather has been abnormal this year, with snow in April.Doctors ran tests to find the cause of her abnormal heart rhythm.SynonymsunusualatypicalirregularAntonymstypicalnormal