buttery vs fulsome

buttery is a noun but fulsome is not a noun.

Word	Noun	Adjective	Verb	Adverb
buttery	Yes	Yes	No	No
fulsome	No	Yes	No	No

As adjectives, buttery and fulsome are synonyms defined as:

buttery and fulsome: unpleasantly and excessively suave or ingratiating in manner or speech

Other synonyms of buttery include oily, oleaginous, smarmy, soapy, unctuous.

buttery (noun)	fulsome (noun)
a teashop where students in British universities can purchase light meals
a small storeroom for storing foods or wines

buttery (adjective)	fulsome (adjective)
resembling or containing or spread with butter	unpleasantly and excessively suave or ingratiating in manner or speech
unpleasantly and excessively suave or ingratiating in manner or speech