This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Not climbed.

"Especially if the city is older than time, built on the slopes of an uneasily slumbering volcano, atop murmuring catacombs, and the eldritch ruins where men fear to tread loom over the unclimbed and unclimbable far side of the volcano, and strange musics or shrieks of nonhuman laughter ring across the ashy slopes when the moon is dark, or, in the case of Mars, moons."