1. An exception
, or something having an exceptional value
What an exceptional flower!
The quality of the beer was exceptional.
Corresponding to something of lower dimension under a birational
an exceptional curve; an exceptional divisor
4. surpassing what is common or usual or expected
5. far beyond what is usual in magnitude or degree
6. deviating widely from a norm of physical or mental ability
7. deviating widely from a norm of physical or mental ability; used especially of children below normal in intelligence
special educational provisions for exceptional children
8. Forming an exception; not ordinary; uncommon; rare; hence, better than the average; superior.