An exception, or something having an exceptional value

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

plural of exceptional

plural of exceptant

With due allowance for (a specified detail); not including; other than.

Third-person singular simple present indicative form of except

with the exception of

present participle of except

(transitive) To exclude; to specify as being an exception. / (intransitive) To take exception, to object (to or against).

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