ずじまい
Usage
This is used to express that some action ended up not being performed despite the subject's desire or intention to perform it. It conveys regret
Examples
ジョンさんとはケンカしてから、仲直りできずじまいで卒業してしまった
I graduated without making up with John after our fight
見たいと思っていた映画の上映が終わってしまった。忙しくてなかなか時間が作れず、見ずじまいだった
The movie I wanted to see stopped showing. I was too busy and couldn't make time to watch it