Artificial intelligent assistant

holdless

holdless, a. Mountaineering.
  (ˈhəʊldlɪs)
  [f. hold n.1 + -less.]
  Affording no holds; having a smooth unbroken surface.

1922 E. R. Eddison Worm Ouroboros xiii. 184 Cliffs smooth and holdless as a castle wall. 1933 [see abseil]. 1971 Country Life 25 Feb. 410/1 Alastair solved problem after problem..making short work finally of the hardest obstacle, an awkward holdless entry to a chimney at the start of the last tower.

Oxford English Dictionary

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