Adjective : member countries of the United Nations.    From Dictionary.com. 

If it had to direct itself to a memberless unity, it would be dereasoned: what could it say or know of such an object?.    From Wordnik.com.  [The Six Enneads.] Reference

Banditry was in the air at the moment for that morning the now memberless trunk of the American missionary had been found at the gates of the Baptist compound.    From Wordnik.com.  [The Complete Stories]

If anywhere truly exemplified in plants, it is only in the lowest and simplest, where the being is a structural unit, a single cell, memberless and organless, though organic, -- the same thing as those cells of which all the more complex plants are built up, and with which every plant and (structurally) every animal began its development.    From Wordnik.com.  [The Atlantic Monthly, Volume 06, No. 34, August, 1860] Reference

Africa lies on the surface of the ocean, a huge torso of a continent, headless, memberless, inert.    From Wordnik.com.  [Influences of Geographic Environment On the Basis of Ratzel's System of Anthropo-Geography] Reference

She takes from the honeycomb a little memberless live thing; she brings it wings and feet, brightens and beautifies it with quaint variety of colour: -- and.    From Wordnik.com.  [Marius the Epicurean — Volume 2] Reference