na-adjective, noun which may take the genitive case particle 'no', noun
extraordinary; exceptional; nonstandard
Describes something that deviates from the norm in a notable way, often with a positive or neutral connotation of being special or outstanding. Can also mean 'nonstandard' in a technical sense.
彼は格外の才能を持っている。
He has extraordinary talent.
この製品は格外の品質だ。
This product is of exceptional quality.