planetless

planet +‎ -less

planetless (not comparable)

1. Without planets.
   • 1818, Percy Bysshe Shelley, The Revolt of Islam:

     A shoreless sea, a sky sunless and planetless.

   • 1860, Alexander von Humboldt, Cosmos: A Sketch of a Physical Description of the Universe:

     The circumstance which, on the occasion of the discovery of Ceres, and the other so-called small planets, first forcibly recalled to mind Kepler's Pythagorean arguments, was his almost forgotten conjecture as to the probable existence of a yet unseen planet in the great planetless chasm between Mars and Jupiter.

2. (science fiction) Having no home planet.
   • 1961, Galaxy Magazine - Volume 20, Issues 1-6, page 163:

     And I am not going to gamble half our resources on as crazy an effort as this, masterminded by a mouthful of planetless lunatics.

   • 1998, Dana Stabenow, Killing Grounds, →ISBN, page 222:

     He cleared his throat and began the tale of the planetless boy, and Kate listened, drowsy, drifting.

   • 2006, Marvin Kaye, Forbidden planets, →ISBN, page 269:

     Umlari, others called them. Or spacefolk. Or those planetless freaks. Living in their great stations, orbiting unwanted stars, the People cared nothing for names.