stupefaction vs unconsciousness

stupefaction and unconsciousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
stupefaction	Yes	No	No	No
unconsciousness	Yes	No	No	No

As nouns, unconsciousness is a hypernym of stupefaction; that is, unconsciousness is a word with a broader meaning than stupefaction:

stupefaction: marginal consciousness
unconsciousness: a state lacking normal awareness of the self or environment

stupefaction (noun)	unconsciousness (noun)
the action of stupefying; making dull or lethargic	a state lacking normal awareness of the self or environment
marginal consciousness
a feeling of stupefied astonishment