This is the 1712th most frequent Japanese word.
どうしても
"どうしても" means "no matter what; by all means; inevitably; at any cost."
This illustrates the sense of inevitability or impossibility in achieving something despite efforts.
どうしても間に合いませんでした。
I could not make it in time no matter what.
Here, it conveys a strong determination and persistence towards achieving a goal.
どうしても試験に合格したい。
I absolutely want to pass the exam.
In this usage, it highlights the speaker's emphasis on the determination and decisiveness of someone's action.