Forming an exception; not ordinary; uncommon; rare. / Better than the average; superior due to exception or rarity.

An exception, or something having an exceptional value

plural of exceptional

exceptional, having an exception

(archaic) Making exception.

One who makes an exception.

The act of excepting or excluding; exclusion; restriction by taking out something which would otherwise be included, as in a class, statement, rule.

plural of exception

with the exception of; but.

With the exception (that); used to introduce a clause, phrase or adverb forming an exception or qualification to something previously stated.