unrest vs agitation

unrest and agitation both are nouns.

Word	Noun	Adjective	Verb	Adverb
unrest	Yes	No	No	No
agitation	Yes	No	No	No

As nouns, agitation is a hypernym of unrest; that is, agitation is a word with a broader meaning than unrest:

As nouns, unrest and agitation are synonyms defined as:

unrest and agitation: a state of agitation or turbulent change or development

Other synonyms of unrest include ferment, fermentation, tempestuousness.

unrest (noun)	agitation (noun)
a feeling of restless agitation	disturbance usually in protest
a state of agitation or turbulent change or development	the act of agitating something; causing it to move around (usually vigorously)
	the feeling of being agitated; not calm
	a state of agitation or turbulent change or development
	a mental state of extreme emotional disturbance