ベテラン
beteran

Noun
no-Adjective

1. veteran (in a particular field); person with a lot of experience; old hand

あれほどのベテランにもかかわらず、彼 かれはどうしてよいのかわからなかった。
arehodono beterannimo kakawarazu karewa dō shiteyoi noka wakaranakatta.
For all his experience, he had no idea what to do with it.
Other forms: