ichidan verb
give up searching; be unable to find after a long search
Rare term. Describes the state of having searched extensively without success and being on the verge of giving up. Often used in literary or emphatic contexts.
何時間も探しあぐねて、ついに諦めた。
After searching for hours without success, I finally gave up.
彼
He searched for the key in vain and had no choice but to enter through the window.