Cubic/ˈkjuːbɪk/ Definition 1 of 3Pro Tip 1/3Physical Presence Used when describing something solid and noticeable in three dimensions. The cubic sculpture dominated the plaza. Pro Tip 2/3Symmetry Noted Highlights the symmetry of the cube's six identical sides. Playing dice relies on the cubic form for fairness. Pro Tip 3/3Simplicity Implies something is straightforward or uncomplicated, like a cube. He preferred cubic designs for their simplicity.