treacherously

After dominating the recent Chinese Grand Prix, a race run in treacherously wet conditions, Red Bull designer Adrian Newey was asked by Autosport's Edd Straw to explain why his car is so quick in the wet:

Archive 2009-05-01 Gordon McCabe 2009

In short, it is this great plague of the world, deception, which takes wrong measures, and makes false musters almost in every thing; which sounds a retreat instead of a charge, and a charge instead of a retreat; which overthrows whole armies; and sometimes by one lying word treacherously cast out, turns the fate and fortune of states and empires, and lays the most flourishing monarchies in the dust.

Sermons Preached Upon Several Occasions. Vol. II. 1634-1716 1823

Some particular instances of their treachery are here given: There they dealt treacherously, that is, in the places hereafter named [1.]

Commentary on the Whole Bible Volume IV (Isaiah to Malachi) 1721

Her former allies would not: nay, some "treacherously" joined her enemies against her (2Ki 24: 2, 7; Ps 137: 7).

Commentary Critical and Explanatory on the Whole Bible 1871

Since 1814 Verona had been under Austria's sway, and had "treacherously" forgotten her republican traditions.] [312] {562} [Francesco Can Grande della Scala died in 1329.

The Works of Lord Byron. Vol. 5 Poetry George Gordon Byron Byron 1806

The Kalahari may not look like the Sahara, but it behaves as treacherously.

The Bushman Way of Tracking God PhD Bradford Keeney 2010

Cooper took my elbow and wrapped his arm around my shoulders to lead me across the treacherously slick pavement.

How to Flirt with A Naked Werewolf Molly Harper 2011

I love the way that he represents the Demon race as being completely free of sin (and thus free of repentance), and the Witches as being more treacherously fallen, but never repenting.

A Very, Very Happy Day « Unknowing 2009

Actually, this is a treacherously seductive line of argument, and a report Tuesday on the Chesapeake Bay coastline from Washington's local NPR station, WAMU, shows why.

Stromberg: Won't climate change help America? 2011

At the Great Bear, overcome by the common dread of the Unknown Lands, their voyageurs began to desert, and Fort of Good Hope saw the last and bravest bending to the tow-lines as they bucked the current down which they had so treacherously glided.

In a Far Country 2010