conclusive
adjective uk/kənˈkluː.sɪv/ us/kənˈkluː.sɪv/
C2 无可置疑的;确实的;决定性的;结论性的
proving that something is true, or ending any doubt
They had conclusive evidence/proof of her guilt. 他们掌握了她有罪的确凿证据。
a conclusive argument 令人信服的论据
Opposite: inconclusive