My favourite words for now are the empty ones

Hollow

Vacant

Bereft

Blank of piece of paper (although a blank piece of paper holds a promise that I do not currently feel).

I think also that the negated words (the ones that try to describe a voided space) implicitly carry the antithesis of what they’re trying to describe. I mean to say, that I would not so worry about the emptiness if I was not so concerned with what it could be filled with.