最さい終しゅう的てき

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Meanings

Used to describe the final stage, decision, or outcome after a process. Often appears as 最終的に (adverbially) meaning 'in the end' or 'ultimately'.

最さい終しゅう的てきに〈動どう詞し〉to eventually/ultimately do something
彼かれは最さい終しゅう的てきに留りゅう学がくすることを決きめた。
He ultimately decided to study abroad.
最さい終しゅう的てきな〈事こと〉the final ~ (decision, conclusion, result, etc.)
最さい終しゅう的てきな結けつ論ろんはまだ出でていない。
A final conclusion has not yet been reached.
最さい終しゅう的てきには〈事こと〉in the final analysis, ~ (turns out to be the case)
最さい終しゅう的てきには全ぜん員いんが賛さん成せいした。
In the end, everyone agreed.

最さい後ごN4
最後 is a plain noun meaning 'the last (one/point)' in a sequence, while 最終的 is an adjectival noun stressing the conclusive result of a process.
結けっ局きょくN3
結局 is an adverb meaning 'in the end/after all' with a nuance of unexpected or ironic outcome, whereas 最終的（に）describes the plain final stage of a process.
究きゅう極きょく的てき
究極的 emphasizes reaching the ultimate, most extreme conclusion, while 最終的 simply marks the last step in a sequence without that intensity.
最さい終しゅうN3
最終的 is the な-adjective form meaning 'final' or 'ultimate,' often used adverbially, while 最終 is a noun/の-adjective placed directly before nouns like 最終結果.

最さい初しょN4
最初 means 'the first/beginning', the direct opposite of 最終的 which points to the final stage or outcome.

最さい終しゅうN3
最終 is a bare noun used mainly in compounds like 最終日, while 最終的 is the adjectival form used to describe or modify a decision, result, or state.

最さい終しゅう的てき解かい決けつ
final resolution; final solution · Final Solution (Nazi Germany)

Compound of 最終 (final, last) + 的 (-like, -ish), forming an adjectival noun. The exact historical derivation is straightforward.