abnormal B1

/ˌæbˈnɔɹ.ml̩/ different from what is normal or expected, often in a worrying way

abnormality C2+

/ˌæbnɔrˈmæləti/ an abnormal feature, characteristic, or occurrence

abnormalism C2+

/æbˈnɔrməˌlɪzəm/ the condition or an instance of being abnormal; an abnormality