viewless

From view +‎ -less.

viewless (not comparable)

1. Without a view.

   a viewless hotel room

2. (poetic) invisible; unseen
   • c. 1603–1604 (date written), William Shakespeare, “Measure for Measure”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act III, scene i]:

     To be imprison'd in the viewless winds

   • 1725, Homer, “Book IV”, in [Elijah Fenton], transl., The Odyssey of Homer. […], volume I, London: […] Bernard Lintot, →OCLC:

     Swift through the valves the visionary fair
     Repassed, and viewless mixed with common air.

• viewlessly

• wiveless