roast vs stultify

roast is a noun but stultify is not a noun.

Word	Noun	Adjective	Verb	Adverb
roast	Yes	Yes	Yes	No
stultify	No	No	Yes	No

As verbs, stultify is a hyponym of roast; that is, stultify is a word with a more specific, narrower meaning than roast:

Other hyponyms of roast include tease, lampoon, satirise, satirize, debunk, expose.

roast (noun)	stultify (noun)
negative criticism
a piece of meat roasted or for roasting and of a size for slicing into more than one portion

roast (adjective)	stultify (adjective)
(meat) cooked by dry heat in an oven

roast (verb)	stultify (verb)
cook with dry heat, usually in an oven	deprive of strength or efficiency; make useless or worthless
subject to laughter or ridicule	cause to appear foolish
	prove to be of unsound mind or demonstrate someone's incompetence