vacuous, meaningless, lifeless, void, vacant, unfilled, blank, clean, empty-handed, bare, more...

full, occupied, loaded, abundant, replete

vacant, barren, hollow, desolate, unoccupied, blank, void, bare, more...

half, public, static, readonly, floating, procedure, non, constant, not, returned, weight

without substance,   not full,   nothing left,   to drain,   it may be blank,   void like,   not containing,   not filled,   like some promises,   drain to the bottom