levelness

/ˈlɛvəlnəs/
noun
  1. The quality of being flat and even, without bumps or slopes.
    • The levelness of the road made for a smooth and comfortable drive.
    • The levelness of the floor was tested with a spirit level before laying the tiles.
    • Farmers check the levelness of their fields to ensure proper irrigation.
  2. The quality of being calm, steady, and not easily upset.
    • The athlete's levelness helped her stay focused during the final match.
    • Her levelness during the crisis impressed everyone in the office.
    • A good leader needs levelness of mind to make fair decisions under pressure.