Profoundness
Part of speech: noun
Definition: The quality of being profound; profundity
Depth
Part of speech: noun
Definition: The vertical distance below a surface; the amount that something is deep.The distance between the front and the back, as the depth of a drawer or closet.The intensity, complexity, strength, seriousness or importance of an emotion, or situation.The total palette of available colors.The property of appearing three-dimensional.The lower of the two ranks of a value in an ordered set of values.
Example sentence: Without black, no color has any depth. But if you mix black with everything, suddenly there's shadow - no, not just shadow, but fullness. You've got to be willing to mix black into your palette if you want to create something that's real.