scheming

/S K IY1 M IH0 NG/
verb
  1. 1

    To plot, or contrive a plan.

  2. 2

    To plan; to contrive.

adjective
  1. 1

    Tending to scheme; forming underhand plots.

noun
  1. 1

    The activity or practice of making secret or underhanded plans.

Source: https://en.wiktionary.org/wiki/scheme, https://en.wiktionary.org/wiki/scheming