fulsomeness vs oiliness

fulsomeness and oiliness both are nouns.

Word	Noun	Adjective	Verb	Adverb
fulsomeness	Yes	No	No	No
oiliness	Yes	No	No	No

As nouns, fulsomeness and oiliness are synonyms defined as:

Other synonyms of fulsomeness include oleaginousness, smarminess, unction, unctuousness.

fulsomeness (noun)	oiliness (noun)
smug self-serving earnestness	consisting of or covered with oil
excessive but superficial compliments given with affected charm	smug self-serving earnestness