unclimbable
adjEtymology From un- + climb + -able.
1
Not able to be climbed
- Those cliffs are unclimbable.
- The base of each [floodlight] tower forms an outdoor-type sub-station compound with a 7ft unclimbable fence which houses the extra high-voltage ring main switchgear, the transformer and the medium voltage switchgear.1963 August, “The semi-automatic Tees Yard of the North Eastern Region”, in Modern Railways, pages 123–124:
1 more example
- Yet every world should have at least one unclimbable mountain.1970, Larry Niven, Ringworld, page 118:
- Antonyms
- climbable
- Derived terms
- unclimbability, unclimbableness, unclimbably