Adjective

(en adjective)

Pertaining to conspiracy or conspirators.

His conspiratorial whispers were soft, but that just attracted more attention.

* {{quote-book

, year=1960 , author= , title=(Jeeves in the Offing) , section=chapter X , passage=I pressed the button and he appeared, giving me, as he entered, the sort of conspiratorial' glance the acting secretary of a secret society would have given a friend on the membership roll. “Oh, Swordfish,” I said, having given him a '''conspiratorial''' glance in return, for one always likes to do the civil thing, “this is Mr Herring, who has come to join our little group.” He bowed from the waist, not that he had much waist. [...] “And when you have got him installed, perhaps I could have a word with you in your pantry,” I said, giving him a '''conspiratorial''' glance. “Certainly, sir,” he responded, giving me a '''conspiratorial''' glance. It was one of those big evenings for ' conspiratorial glances.}}

Adjective

(er)

Having the appearance of someone dishonest, criminal or unreliable; such as someone with shifty eyes .

He was a shifty character in a seedy bar and I checked my wallet was still there after talking to him.

Subject to frequent changes in direction.

* 1971 , Henry Handel Richardson, Ultima Thule (page 121)

Off he raced, shuffling his bare feet through the hot, dry, shifty sand. But it was no good: she didn't care.

Full of, or ready with, shifts or expedients.

(Wright)

* Charles Kingsley

Shifty and thrifty as old Greek or modern Scot, there were few things he could not invent, and perhaps nothing he could not endure.