unctuous

/หˆสŒnktสƒuษ™s/

IPA: /AH1 NG CH W AH0 S/

adjective
  1. 1

    (of a liquid or substance) Oily or greasy.

  2. 2

    (of a wine, coffee, sauce, gravy etc.) Rich, lush, intense, with layers of concentrated, soft, velvety flavor.

  3. 3

    (by extension, of a person) Profusely polite, especially unpleasantly so and insincerely earnest.

Source: https://en.wiktionary.org/wiki/unctuous