Definition of "unclimbed"
Not climbed.
Quotations
Looking to the east we could see Api and the mountains of west Nepal, shapely snow peaks in the distance, while in the immediate foreground, much lower but still dramatic, were the peaks of Panch Chuli IV and V (III was hidden by the lip of a huge cornice), Telkot and Nagling, all of them unclimbed, all steep and challenging.
1999, Harish Kapadia, “Ascents in the Panch Chuli Group”, in Across Peaks & Passes in Kumaun Himalaya, New Delhi: Indus Publishing Company, page 136