An exception, or something having an exceptional value
Corresponding to something of lower dimension under a birational correspondence.
Forming an exception; not ordinary; uncommon; rare.
Better than the average; superior due to exception or rarity.
Lack of brightness or points of interest.
A person or thing of no particular brilliance or intelligence.
Having no shine or lustre; dull.
Not exceptional; not worthy of special merit, attention, or interest; having no vitality.
Lacking brilliance or intelligence.