1. Containing nothing.
  2. Not occupied or inhabited.
  3. Lacking reality, substance, meaning, or value.
  4. Destitute of effect or force.
  5. Devoid of sense.
  6. Having no purpose or result.
  7. Marked by the absence of human life, activity, or comfort.

The emotion of Empty is found in the Stomach meridian in the Earth element.

Definition from Dictionary by Merriam-Webster.