acting in a furtive or underhand way.
deceitfully underhand, as actions; contemptible.
secret; not generally avowed, as a feeling, notion, suspicion, etc.

Origin of sneaking

First recorded in 1575–85; sneak + -ing2
Related formssneak·ing·ly, adverbsneak·ing·ness, nounun·sneak·ing, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for sneakingly

Historical Examples of sneakingly

  • Alfred interrupted her by sneakingly inquiring as to how she liked the sermon.

  • He goes about, like the cat in the fable, 'pede suspenso,' sneakingly and cautiously!

    O. T.

    Hans Christian Andersen

  • But to say he couldn't was so sneakingly good that I don't believe it of him.

  • Then he knew that to tell Locke he did not care to go to the island and later to go by himself would have been sneakingly selfish.

    Isle o' Dreams

    Frederick F. Moore

  • Every one started, and Grump's countenance did not gather amiability as he sneakingly noticed the general distrust.

British Dictionary definitions for sneakingly



acting in a furtive or cowardly way
secreta sneaking desire to marry a millionaire
slight but nagging (esp in the phrase a sneaking suspicion)
Derived Formssneakingly, adverbsneakingness, noun
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