definitive
🇺🇸
/dɪˈfɪnətɪv/
🇬🇧
/dɪˈfɪnətɪv/
final and cannot be changed
This is the definitive answer that cannot be changed.
這是最終且無法更改的答案。
the best and cannot be improved
This book is the definitive guide to cooking.
這本書是烹飪方面最權威且無法超越的指南。