ex·cep·tion·al 
(ĭk-sĕpshə-nəl)
(ĭk-sĕpshə-nəl)adj.
1. Being an exception; uncommon: This town is exceptional for the region in having a high tax rate.
2. Well above average; extraordinary: an exceptional memory.
3. Deviating widely from a norm, as of physical or mental ability: special educational provisions for exceptional children.
ex·cep′tion·ali·ty, ex·ception·al·ness n.
ex·ception·al·ly (-shə-nălĭ-tē) adv.