unscrupulous

• The Phanariot clergy--unscrupulous, rapacious and corrupt--succeeded in monopolizing the higher ecclesiastical appointments and filled the parishes with Greek priests, whose schools, in which Greek was exclusively taught, were the only means of instruction open to the population. —  Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary"
• And a good thing, too, for a more unscrupulous--unscrupulous---" he paused for breath Occupied with his own emotion, he had not observed the change in old Heythorp's face. —  Complete Project Gutenberg John Galsworthy Works
• The brilliant and unscrupulous, the beautiful and the bad, have —  The Weavers: a tale of England and Egypt of fifty years ago - Volume 5
• The Jew was always portrayed as a villainous merchant, shifty-eyed, large-nosed, unscrupulous, and wealthy. —  The Black Experience in America
• Always unscrupulous, they have descended to the most despicable of tactics in order to deceive the public. —  The Dwelling Place of Light — Complete

Roget's II: The New Thesaurus

Used in the Same Context