unclimbable

English

Etymology

From un- +‎ climb +‎ -able.

Adjective

unclimbable (not comparable)

1. Not able to be climbed

   Those cliffs are unclimbable.

   • 1963 August, “The semi-automatic Tees Yard of the North Eastern Region”, in Modern Railways, pages 123–124:

     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.

   • 1970, Larry Niven, Ringworld, page 118:

     Yet every world should have at least one unclimbable mountain.

Antonyms

• climbable

Derived terms

• unclimbability

References

• “unclimbable”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.