Complicated, intricate, or cumbersome; involving many confusing or troublesome details.
煩雑な申請書類をすべて揃えるのに時間がかかった。
It took time to gather all the complicated application documents.
会議の準備が煩雑で、チェックリストを作った方がいい。
The preparations for the meeting are cumbersome; it's better to make a checklist.
煩雑な工程を自動化して効率を上げた。
We automated the complicated processes to improve efficiency.