unscaleable

Adjective

unscalable (not comparable)

1. Not scalable, that cannot be climbed.
   • […] Remember, sir, my liege,
     The kings your ancestors, together with
     The natural bravery of your isle, which stands
     As Neptune’s park, ribbed and paled in
     With rocks unscalable and roaring waters,
     With sands that will not bear your enemies' boats,
     But suck them up to the topmast. […]1611 April (first recorded performance), William Shakespeare, “The Tragedie of Cymbeline”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard...
2. Not scalable, that cannot be changed in scale.
   • The idea has its detractors. Skeptics argue the whole idea is unscalable, and that large vertical farms would be insatiable consumers of energy to keep the plants lit, healthy, and harvested […]2013 January 7, Patrick Metzger, “Public Works: Vertical Farming”, in Torontoist