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unctuous

[ uhngk-choo-uhs ]
/ ˈʌŋk tʃu əs /
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adjective

characterized by excessive piousness or moralistic fervor, especially in an affected manner; excessively smooth, suave, or smug.
of the nature of or characteristic of an unguent or ointment; oily; greasy.
having an oily or soapy feel, as certain minerals.

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Origin of unctuous

1350–1400; Middle English <Medieval Latin ūnctuōsus, equivalent to Latin ūnctu(s) act of anointing (ung(uere) to smear, anoint + -tus suffix of v. action) + -ōsus-ous
unc·tu·ous·ly, adverbunc·tu·ous·ness, unc·tu·os·i·ty [uhngk-choo-os-i-tee], /ˌʌŋk tʃuˈɒs ɪ ti/, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for unctuous

unctuous
/ (ˈʌŋktjʊəs) /

adjective

slippery or greasy
affecting an oily charm
unctuosity (ˌʌŋktjʊˈɒsɪtɪ) or unctuousness, noununctuously, adverb
C14: from Medieval Latin unctuōsus, from Latin unctum ointment, from ungere to anoint
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for unctuous

unctuous
[ ŭngkchōō-əs ]

adj.

Containing or composed of oil or fat.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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