unction vs oiliness

unction and oiliness both are nouns.

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

As nouns, unction and oiliness are synonyms defined as:

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

unction (noun)	oiliness (noun)
anointing as part of a religious ceremony or healing ritual	consisting of or covered with oil
semisolid preparation (usually containing a medicine) applied externally as a remedy or for soothing an irritation	smug self-serving earnestness
smug self-serving earnestness
excessive but superficial compliments given with affected charm