to onsight
01
オンサイトで登る, 初見で完登する
(climbing) to successfully complete a route on the first attempt without any prior knowledge or information about the route's challenges
例
He managed to onsight the difficult route, relying solely on his instincts and skill.
彼は難しいルートをonsightで成功させ、自分の本能とスキルだけに頼りました。
