Definition of Exceptional

Adjective: exceptional ik'sep-shu-nul

Far beyond what is usual in magnitude or degree
"an exceptional memory";
- exceeding, olympian, prodigious, surpassing
Surpassing what is common, usual or expected
"exceptional kindness";
- especial, particular, special
(psychology) deviating widely from a norm of physical or mental ability; used especially of children below normal in intelligence
"special educational provisions for exceptional children"