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ultimate; final; last; eventual
これが究極きゅうきょくの目標もくひょうだと信じしんじています。
I think this is the ultimate goal.
究極きゅうきょくの選択せんたくを迫らせまられて悩んなやんでいます。
I'm being forced to make an ultimate choice.
究極きゅうきょく的てきには自分じぶんで決めるきめるしかない。
Ultimately, you have to decide for yourself.