soundiness

Noun

 * 1)  A state of being mostly sound; the condition of being rigorously sound in  all but some well-defined areas; a best approximation of soundness in an environment where absolute soundness or proof of soundness is not feasible.
 * 2) The quality that allows something to be sensed as sound.
 * 1) The quality that allows something to be sensed as sound.
 * 1) The quality that allows something to be sensed as sound.
 * 1) The quality that allows something to be sensed as sound.