Abnormal a. : Not conformed to rule or system; deviating from the type; anomalous; irregular.

Example:
What treatment is available for Abnormal vaginal bleeding after stopping birth control?

Taxonomy
behavior, abnormality, abnormal behavior, criterion, society, deviation, free encyclopedia, mental disorder, Social Norms, norms, Dysfunctional, ideal mental health, abnormal behaviors, the normal, infrequency, moral behavior, behavior change, the Failure.

Defination from the web:
... in the case of abnormal behavior is statistical infrequency. This has an obvious flaw — the extremely intelligent, are just as abnormal as their opposites. ... When people do not follow the conventional social and moral rules of their society, the behavior is considered abnormal. ...