"devoid of principles" is a correct and usable phrase in written English.
It is typically used to describe someone or something that lacks moral values or ethical standards. Example: The politician was known for being devoid of principles, as he constantly broke promises and engaged in corrupt behavior.
And, unsurprisingly really, the motion was proposed by the leader of the Lib Dem group, proving once and for all his party's true colours: devoid of principles and just desperate for power at any price.
He was undoubtedly the only candidate simultaneously sly enough, opportunistic enough and so devoid of principles that he could slip the bonds of the Republican policies on which he had campaigned in the primaries.
It's postmodern-ironic, but not so ironic as to be devoid of principle".
Violently anticlerical and considered devoid of principle, Rattazzi nevertheless became premier after Cavour's death.
On the other hand, I suppose, the Chief may simply be beating a devilishly clever, purely tactical retreat, devoid of principle.
Mr. Beatty traces the rise of the railroads, the great land-grab unloosed in the West, the development of a two-party system devoid of principle and fat with corruption, and the steady abandonment of Reconstruction in the South.
Then there is Romney, who, despite his losses this week is still the odds-on favorite to win the nomination; once again, he betrays himself as utterly devoid of principle.
It is obvious that the Methodist court that judged the father in question did so completely blinded by "rule" and devoid of principle.
West also called Code Pink "losers" and "Code Yellow, as in cowards, for you are nothing more than a group of misguided partisan sycophants devoid of principle, integrity, and character".
But Amin is devoid of any principles.
But rather in day-to-day conversations, many have walked away from speaking to Muslims with the feeling that Islam is pretty devoid of any principles of Mercy.
