final; not able to be changed 最後的；決定性的；不可更改的 a definitive agreement/answer/statement 最後的協議／答複／聲明 The definitive version of the text is ready to be published. 文本的正稿已備妥，可以發表了。
Extra ExamplesClearly, this study can not provide a definitive answer. 顯然，這項研究不能提供一個明確的答案。 They have signed a definitive agreement to acquire the company outright. 他們已經簽署了徹底收購該公司的最終協議。
- [usually before noun]
considered to be the best of its kind and almost impossible to improve 最佳的；最完整可靠的 the definitive biography of Einstein 最完整可靠的愛因斯坦傳記 the definitive guide to the golf courses of Europe 歐洲高爾夫球場的權威指南
Word Originlate Middle English: from Old French definitif, -ive, from Latin definitivus, from definit- ‘set within limits’, from the verb definire, from de- (expressing completion) + finire ‘finish’.