treacherous

• On the other hand again there was the risk of falling among savages, for the natives of these latitudes were known to be fierce, treacherous, and inhospitable to strangers We might, however, possibly meet with some ship, as we should cross the course pursued by Spanish vessels sailing from America to the Philippines. —  Peter Trawl The Adventures of a Whaler
• They came from a quarter I did not like, inhabited by Dacotahs and Pawnees--treacherous, thievish rascals, who will take the scalp of an old woman if they can catch her asleep, and make as much boast of it as if they had killed a warrior in open fight. —  Dick Onslow Among the Redskins
• He tells us that they are treacherous, and that if they thought they would gain by murdering every man of our crew they would do so. —  The Cruise of the Mary Rose Here and There in the Pacific
• "To my mind they'll deserve to be hove overboard to feed one of those sharks out there;" and he pointed to a black fin which was gliding just above the surface I hope that they will not prove treacherous, and it is our business to take care that they have no opportunity of being so," said Rayner. —  From Powder Monkey to Admiral A Story of Naval Adventure
• Can it best be accomplished by force or fraud That is the very question on which I would consult you," I answered, not wishing to inform her of the plan I proposed, lest she should prove treacherous--for even then I did not altogether confide in her Perchance it might be well to unite the two," she said. —  The Golden Grasshopper A story of the days of Sir Thomas Gresham

Roget's II: The New Thesaurus

Allen's Synonyms and Antonyms

Used in the Same Context