Abnormal vs. Subnormal — What's the Difference?

Deviating from what is normal or usual, typically in a way that is undesirable or worrying

Less than normal; below the average.

Not typical, usual, or regular; not normal; deviant.

(Offensive) One who is regarded as subnormal in some respect, such as in intelligence or coordination. No longer in clinical use.

Not conforming to rule or system; deviating from the usual or normal type.

Less than normal.

Of or pertaining to that which is irregular, in particular, behaviour that deviates from norms of social propriety or accepted standards of mental health.

(computing theory) denormal

A person or object that is not normal.

A person whose abilities are less than normal.

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

(geometry) That part of the axis of a curved line which is intercepted between the ordinate and the normal.

Not normal; not typical or usual or regular or conforming to a norm;

That part of the axis of a curved line which is intercepted between the ordinate and the normal.

Departing from the normal in e.g. intelligence and development;

A person of less than normal intelligence

Much greater than the normal;

Below normal or average;