Unsteady, random; prone to unexpected changes; not consistent.
Deviating from normal opinions or actions; eccentric; odd.
A rock moved from one location to another, usually by a glacier.
Anything that has erratic characteristics.
Forming an exception; not ordinary; uncommon; rare.
Corresponding to something of lower dimension under a birational correspondence.
Better than the average; superior due to exception or rarity.
An exception, or something having an exceptional value