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adj. sneak·i·er, sneak·i·est
Furtive; surreptitious.

sneak′i·ly adv.
sneak′i·ness n.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adv.1.sneakily - in a surreptitious manner; "he was watching her surreptitiously as she waited in the hotel lobby"
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
I had a similar issue with my dad giving my daughters sweets sneakily, and often before meals.
If you announce in your speech you will withdraw a levy and then don't withdraw and then actually raise the levy sneakily, what's that called?
DOUG Shield (EU 'deal' is a surrender, Journal Letters, 25 February 25) sneakily seeks again to compare the EU to the Third Reich and restoke this grotesquely offensive "it's World War II all over again" line.
Victims are shown a sheet of paper before their mobiles are then sneakily snatched from their desks by the man who pretends to be deaf.
Greater Lagro but sneakily dropping cosmetic products into their handbags.
Elsewhere, Ross sneakily pockets Pete's holiday money and uses it to buy more drugs.
It must ask international bodies to delete the terms that China sneakily gave to five peaks in the Philippine Rise.
After breakfast I had to spray the windows again after Snow Queen Elsa had very sneakily returned and applied a fresh covering of ice when no-one was looking before Maria and I could go shopping in Huddersfield.
Harris mixes bright and bold India ink with deceptively kidlike and bold construction-paper collage; he and Eggers create an amusing, deadpan history of the Statue of Liberty that winds up being sneakily touching.
Thanks to Bharat for sneakily getting me the measurements of Esha for the gown and managing to keep it a surprise for her," said Ahana in a statement.
But if anyone has been left wondering if the Labour Party knows the meaning of the word "democracy" or is not the champion of the working classes, the fact that it sneakily put up the supporters' fee to PS25 is evidence it has lost its core values.