Use duplicitous in a sentence

It is duplicitous to take his words out of context.

That guy is duplicitous psychopath who will try to trick you.

The companies sometimes push duplicitous sales campaign to fool consumers.

--I will not defend him, but I will wish from the bottom of my heart that their bad luck sends them to a woman as beautiful and duplicitous as Madame Reymer.

And though he had spent the bulk of his academic career teaching his students that truth, with its duplicitous and mutable definitions, could never be found in a text, he began to search, quickly and sincerely, for meaning.

"He's been such a duplicitous and ungrateful brother."