Abnormal :: Abnormal (a.) Not conformed to rule or system; deviating from the type; anomalous; irregular.
Abnormality :: Abnormality (n.) The state or quality of being abnormal; variation; irregularity.
Abnormally :: Abnormally (adv.) In an abnormal manner; irregularly.
Abnormity :: Abnormity (n.) Departure from the ordinary type; irregularity; monstrosity.