delirium vs hysteria

delirium and hysteria both are nouns.

Word	Noun	Adjective	Verb	Adverb
delirium	Yes	No	No	No
hysteria	Yes	No	No	No

As nouns, delirium and hysteria are synonyms defined as:

Other synonyms of delirium include craze, frenzy, fury.

delirium (noun)	hysteria (noun)
a usually brief state of excitement and mental confusion often accompanied by hallucinations	excessive or uncontrollable fear
state of violent mental agitation	neurotic disorder characterized by violent emotional outbreaks and disturbances of sensory and motor functions
	state of violent mental agitation