あぐねる

ichidan verb, intransitive verb

tire of; lose interest in; find unmanageable

Attaches to the -masu stem of a verb to express that one tires of doing something, finds it too much, or doesn't know what to do with it. Often used when a task or situation becomes overwhelming or boring.

• 考かんがえあぐねて、友とも達だちに相そう談だんした。

  I tired of thinking about it and consulted a friend.

• 彼かれは仕し事ごとの多おおさに扱あつかいあぐねている。

  He is at a loss with the sheer amount of work.