definitive
Cross references:
1. conclusive
de.fin.i.tive \di-'fin-*t-iv\ aj 1: serving to provide a final solution :
CONCLUSIVE {a ~ v ictory} 2: authoritative and apparently exhaustive {the ~
book on the subj ect} 3: serving to define or specify precisely 4: fully
differentiated or developed - de.fin.i.tive.ly av
Webster's English Dictionary