Aberrant vs. Abnormal — What's the Difference?

Aberrant is a role-playing game created by White Wolf Game Studio in 1999, set in 2008 in a world where super-powered humans started appearing one day in 1998. It is the middle setting in the greater Trinity Universe timeline, chronologically situated about 90 years after Adventure!, White Wolf's Pulp era game, and over a century before the psionic escapades of Trinity/Aeon.

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

Departing from an accepted standard

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

Deviating from what is considered proper or normal

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

Deviating from what is typical for a specified thing

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

One that is aberrant.

A person or object that is not normal.

Differing from the norm.

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

Straying from the right way; deviating from morality or truth.

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

Deviating from the ordinary or natural type; exceptional; abnormal.

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

A person or object that deviates from the rest of a group.

Much greater than the normal;

(biology) A group, individual, or structure that deviates from the usual or natural type, especially with an atypical chromosome number.

Wandering; straying from the right way.

Deviating from the ordinary or natural type; exceptional; abnormal.

One whose behavior departs substantially from the norm of a group

Markedly different from an accepted norm;