Noun
The state or quality of being intense; intensity; as, the intenseness of heat or cold; the intenseness of study or thought.
Source: Webster's dictionaryAfter this I proceeded to the city of Barwan, in the road to which is a high mountain, covered with snow and exceedingly cold; they call it the Hindu Kush, that is Hindu-slayer, because most of the slaves brought thither from India die on account of the intenseness of the cold. Ibn Battuta