B2 adjective /ˈtʃuː.zi/
Choosey/Choosy
気難しい; 非常に選択的; 好きなことや受け入れることに関して特に気を使う
Meaning
very careful in choosing; selective; particular about what one likes or accepts
Example
He's very choosy about the restaurants where he eats.
彼は食べるレストランにとても気難しい。