The state of being trickish, deceitful, or artful.(noun)
The Century Dictionary (Public Domain)
Use "trickishness" in a sentence
"It was another instance of the trickishness of her memory; she could have remembered both the text and sermon without an effort had she not been afraid of forgetting them."
"The misguided husband believes that he is going to live a plain unsophisticated life, according to nature and common sense, in company with one whom the hollowness and trickishness of society has never infected."
"The one monkey I liked, and that at a distance, was the wa-wa, whose voice was very sweet and melodious, like the soft bubbling of water; but it was a very melancholy animal, and never seemed to possess the fun and trickishness of the more common sorts of ape."