ONE INTERESTING WORD, EVERY DAY.AN EDITION FOR THE CURIOUS
FROM THE ARCHIVEThursday, October 15, 2026

unctuous

UNK-choo-us/ˈʌŋktʃuəs//adjective
01 / MEANING

Insincerely and excessively flattering; in a literal sense, greasy or oily.

In a sentence.

  1. 01

    The salesperson's unctuous praise made her wary.

  2. 02

    The ointment left an unctuous film on the jar.

Where it came from.

Unctuous ultimately comes from Latin unguō, ‘to anoint or smear with oil,’ through words for an oily substance. Its figurative sense gives excessive politeness an unpleasantly slick texture.

Explore the source

Why it’s interesting.

It makes a social judgment feel physical: a smooth manner can seem as oily as a salve.

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