imperiousness vs domineeringness

imperiousness and domineeringness both are nouns.

Word	Noun	Adjective	Verb	Adverb
imperiousness	Yes	No	No	No
domineeringness	Yes	No	No	No

As nouns, imperiousness and domineeringness are synonyms defined as:

imperiousness and domineeringness: the trait of being imperious and overbearing

Other synonyms of imperiousness include overbearingness.

imperiousness (noun)	domineeringness (noun)
the trait of being imperious and overbearing	the trait of being imperious and overbearing