upheaval vs agitation

upheaval and agitation both are nouns.

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

As nouns, upheaval and agitation are synonyms defined as:

Other synonyms of upheaval include excitement, hullabaloo, turmoil.

As nouns, agitation is a hyponym of upheaval; that is, agitation is a word with a more specific, narrower meaning than upheaval:

upheaval: a state of violent disturbance and disorder (as in politics or social conditions generally)
agitation: a state of agitation or turbulent change or development

Other hyponyms of upheaval include ferment, fermentation, tempestuousness, unrest, roller coaster, violence.

upheaval (noun)	agitation (noun)
disturbance usually in protest	disturbance usually in protest
(geology) a rise of land to a higher elevation (as in the process of mountain building)	the act of agitating something; causing it to move around (usually vigorously)
a state of violent disturbance and disorder (as in politics or social conditions generally)	the feeling of being agitated; not calm
a violent disturbance	a state of agitation or turbulent change or development
	a mental state of extreme emotional disturbance