unscalable
adjective
un·scal·able ˌən-ˈskā-lə-bəl 
: not capable of being climbed or scaled : not scalable
unscalable peaks
an unscalable barrier
Example Sentences
Recent Examples on the Web Businesses growing in unscalable ways and pouring money into sales and marketing are feeling the pain of markdowns on their future valuations. 
Jacob Wolinsky, Forbes, 9 Aug. 2022 As unscalable as this sounds, emails, posts on social media and even letters may not work in this case. Expert Panel, Forbes, 15 June 2022 The site is also surrounded by unscalable black fences that curl outward at the top. Kolbie Peterson, The Salt Lake Tribune, 6 June 2022 Most farmers, though concerned about increasing pesticide use, saw organic farming as unscalable and ruinously expensive. Shely Aronov, Forbes, 21 Apr. 2022 Long gone are the days of unscalable on-premises databases or difficult-to-manage Hadoop clusters. Bruno Aziza, Forbes, 4 Oct. 2021 Erected in January, the fence is 7 feet high, made of black metal mesh, and is supposedly unscalable – its openings purposely too small for a toehold. Michael S. Hopkins, The Christian Science Monitor, 25 May 2021 The first part of a duology, it is set in a huge city enclosed by a gigantic, unscalable wall and has drawn comparisons to both Isaac Asimov and Ursula K. Le Guin. Washington Post, 22 Mar. 2021 Because of the pandemic and Jan. 6-like security risks, a sea of flags were planted in the ground instead, forming different images inside the federal park cordoned off by a 7-foot unscalable fence. Naomi Lim, Washington Examiner, 20 Jan. 2021 See More
Jacob Wolinsky, Forbes, 9 Aug. 2022 As unscalable as this sounds, emails, posts on social media and even letters may not work in this case. Expert Panel, Forbes, 15 June 2022 The site is also surrounded by unscalable black fences that curl outward at the top. Kolbie Peterson, The Salt Lake Tribune, 6 June 2022 Most farmers, though concerned about increasing pesticide use, saw organic farming as unscalable and ruinously expensive. Shely Aronov, Forbes, 21 Apr. 2022 Long gone are the days of unscalable on-premises databases or difficult-to-manage Hadoop clusters. Bruno Aziza, Forbes, 4 Oct. 2021 Erected in January, the fence is 7 feet high, made of black metal mesh, and is supposedly unscalable – its openings purposely too small for a toehold. Michael S. Hopkins, The Christian Science Monitor, 25 May 2021 The first part of a duology, it is set in a huge city enclosed by a gigantic, unscalable wall and has drawn comparisons to both Isaac Asimov and Ursula K. Le Guin. Washington Post, 22 Mar. 2021 Because of the pandemic and Jan. 6-like security risks, a sea of flags were planted in the ground instead, forming different images inside the federal park cordoned off by a 7-foot unscalable fence. Naomi Lim, Washington Examiner, 20 Jan. 2021 See More Word History
First Known Use
circa 1580, in the meaning defined above