exceptional

adjectives

far beyond what is usual in magnitude or degree
"a night of exceeding darkness"; "an exceptional memory"; "olympian efforts to save the city from bankruptcy"; "the young Mozart's prodigious talents"
is derived from
surpassing what is common or usual or expected
"he paid especial attention to her"; "exceptional kindness"; "a matter of particular and unusual importance"; "a special occasion"; "a special reason to confide in her"; "what's so special about the year 2000?"
deviating widely from a norm of physical or mental ability; used especially of children below normal in intelligence
"special educational provisions for exceptional children"
is similar to
departing from the normal in e.g. intelligence and development
"they were heartbroken when they learned their child was abnormal"; "an abnormal personality"
domain category
the science of mental life