perfidious

• In Algiers the christians are treated with particular severity; as the Algerines are some of the most perfidious, as well as the most cruel of all the inhabitants of Barbary. —  Fox's Book of Martyrs Or A History of the Lives, Sufferings, and Triumphant Deaths of the Primitive Protestant Martyrs
• You are so little careful of your fortunes, that when a hundred others would have acquired titles and gold, you have only said--she is capricious, she is perfidious, and a coquette, and I prefer not to serve her. —  The Queen's Necklace
• An additional impediment was produced by his temperament, 'dreamy, perfidious, procrastinating,' withal desirous of shining in society. —  The Old Masters and Their Pictures For the Use of Schools and Learners in Art
• The sense that Verena had been perfidious there--perfidious in her reticence--now began to roll over her. —  The Bostonians, Vol. II (of II)
• Though Verena had now done all she could to make up for her perfidious silence by repeating everything that passed between them as she sat with Mr. Ransom in Monadnoc Place or strolled with him through the colleges, it imposed itself upon Olive that that occasion was the key of all that had happened since, that he had then obtained an irremediable hold upon her. —  The Bostonians, Vol. II (of II)

Roget's II: The New Thesaurus

Allen's Synonyms and Antonyms

Used in the Same Context