plastered vs stiff

plastered is not a noun while stiff is a noun.

Word	Noun	Adjective	Verb	Adverb
plastered	No	Yes	No	No
stiff	Yes	Yes	No	Yes

As adjectives, plastered and stiff are synonyms defined as:

plastered (noun)	stiff (noun)
	the dead body of a human being
	an ordinary man

plastered (adjective)	stiff (adjective)
(of walls) covered with a coat of plaster	having a strong physiological or chemical effect
(of hair) made smooth by applying a sticky or glossy substance	rigidly formal
very drunk	not moving or operating freely
	very drunk
	marked by firm determination or resolution; not shakable
	strong, vigorous
	incapable of or resistant to bending

plastered (adverb)	stiff (adverb)
	in a stiff manner
	to a great degree