Definition Of abnormal
deviating from what is normal or usual, typically in a way that is undesirable or worrying.
the illness is recognizable from the patient's abnormal behavior
Example Of abnormal
A true food allergy is an abnormal response to a food triggered by the immune system.
All women are supposedly naturally maternal and any woman who rejects this role is seen as deviant and abnormal .
An inquest has opened on a grandmother aged 86 who was found to have abnormally high levels of insulin in her body.
As far as I can judge he sees nothing abnormal or peculiar about any part of this routine.