stupor vs stupefaction

stupor and stupefaction both are nouns.

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

As nouns, stupor and stupefaction are synonyms defined as:

Other synonyms of stupor include grogginess, semiconsciousness.

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

stupor: the feeling of distress and disbelief that you have when something bad happens accidentally
stupefaction: a feeling of stupefied astonishment

stupor (noun)	stupefaction (noun)
marginal consciousness	the action of stupefying; making dull or lethargic
the feeling of distress and disbelief that you have when something bad happens accidentally	marginal consciousness
	a feeling of stupefied astonishment