anxiousness vs disquiet

anxiousness and disquiet both are nouns.

Word	Noun	Adjective	Verb	Adverb
anxiousness	Yes	No	No	No
disquiet	Yes	No	Yes	No

As nouns, anxiousness and disquiet are synonyms defined as:

anxiousness and disquiet: a feeling of mild anxiety about possible developments

anxiousness (noun)	disquiet (noun)
a feeling of mild anxiety about possible developments	the trait of seeming ill at ease
(psychiatry) a relatively permanent state of worry and nervousness occurring in a variety of mental disorders, usually accompanied by compulsive behavior or attacks of panic	a feeling of mild anxiety about possible developments

anxiousness (verb)	disquiet (verb)
	disturb in mind or make uneasy or cause to be worried or alarmed