conclusive
/kɒn.kluːsɪv/Definitions
1. adjective
having the power or tendency to lead to a definite conclusion or decision; conclusive in nature
“The expert testimony was conclusive in proving the defendant’s guilt.”
2. noun
the state of being conclusive; a conclusion reached as a result of evidence or reasoning
“The conclusive evidence of the crime scene led to the arrest of the suspect.”