Yarusenai

"やるせない (Yarusenai) - You understand what's wrong, but there is nothing you can do about it. The feeling stays inside because no action would make a difference."

https://diaspora.psyco.fr/posts/017047b01932013f6ae67a163edde882

https://romajidesu.com/dictionary/meaning-of-%E3%82%84%E3%82%8B%E3%81%9B%E3%81%AA%E3%81%84.html