oleaginousness vs fulsomeness

oleaginousness and fulsomeness both are nouns.

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

As nouns, oleaginousness and fulsomeness are synonyms defined as:

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

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