苦心惨憺

くしんさんたん

taking great pains

Also written 苦心惨澹

Meaning

nvsvi
taking great pains

Example sentences

苦心惨憺の末、考え出した企画が、会議で一瞬にして却下されちゃうんだからな。

After all the trouble we went to in coming up with that project, it only took them a second to shoot it down in the meeting.