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Synonyms for Unction (same or very similar meaning)

WordNet sense 1 (excessive but superficial compliments given with affected charm):
fulsomeness, smarm

WordNet sense 2 (smug self-serving earnestness):
oiliness, unctuousness, oleaginousness, smarminess

WordNet sense 3 (semisolid preparation (usually containing a medicine) applied externally as a remedy or for soothing an irritation):
balm, ointment, salve, unguent, salve

WordNet sense 4 (anointing as part of a religious ceremony or healing ritual):

From the ODE community, based on WordNetadd/edit