slyness

noun
  1. The quality of being cunning, crafty, or deceitful, often in a secretive or underhanded manner. noun
    Her slyness allowed her to navigate the corporate world with ease, often outsmarting her competitors.
    The fox's slyness is legendary in folklore, often portrayed as outwitting other animals.
  2. The characteristic of being playfully mischievous or teasing in a clever way. noun
    There was a hint of slyness in his smile as he planned the surprise party.
    Her slyness was evident when she playfully hid her brother's keys as a joke.