IMPERIOUSNESS
imperiousness, domineeringness, overbearingness
(noun) the trait of being imperious and overbearing
Source: WordNet® 3.1
Etymology
Noun
imperiousness (usually uncountable, plural imperiousnesses)
The quality of being imperious
Synonyms: arrogance, haughtiness
Source: Wiktionary
Im*pe"ri*ous*ness, n.
Definition: The quality or state of being imperious; arrogance;
haughtiness.
Imperiousness and severity is but an ill way of treating men who have
reason of their own to guide them. Locke.
Source: Webster’s Unabridged Dictionary 1913 Edition