"duplicitous without" is a correct part of a sentence and can be used in written English.
It is typically used to describe someone who is deceptive or deceitful, but does not openly show it. Here is an example: She was a skilled manipulator, always able to get what she wanted through duplicitous means without anyone suspecting her true intentions.
He is not duplicitous in any way.
This book is much more duplicitous than that.
This is duplicitous as the two are not connected.
The Nixon Administration, too, had been duplicitous in its statements regarding the war.
"He exudes trust and friendliness," he said, "but in fact is duplicitous as hell".
After a distressing little incident involving glass in the pasta sauce (An innocent mistake? Or did she mean for him to cut his duplicitous tongue?), Mario decamps for good without leaving an address.
The letter concludes: Without such a process, duplicitous colleges are free to break the law, to suck down billions in federal student loan dollars, to treat students unfairly – and to stick borrowers with the bill.
Nary a one without a complex and duplicitous prose style, baffling haemorrhage of a plot or an approach to dialogue that was, as Obi Wan said, presumably in reference to Finnegans Wake, "as if millions of voices cried out in terror and were suddenly silenced".
Without such a process, duplicitous colleges are free to break the law, to suck down billions in federal student loan dollars, to treat students unfairly -- and to stick borrowers with the bill," Senate Democrats wrote in their letter.
Clothes have the duplicitous habit of expressing personality to the world without ever really saying anything about who the people wearing them really are.
To older generations Turner will always be the scorching, duplicitous redhead in Body Heat and Prizzi's Honor, but she shows herself now without pretence at nearly 60, happily slutting about the stage in shapeless jeans and lumberjack shirt, playing whiskey-swilling California trailer trash Maude.
