clear and having final authority; that cannot or need not be changed
"the plain and unequivocal language of the laws"
"the definitive work on Greece"
"classical methods of navigation"
"a definitive verdict"
"a determinate answer to the problem"
A jury had pronounced: the verdict was definitive.
出自： Ld Macaulay
A definitive orbit of the comet.
出自： S. Newcomb
This evening's fiasco has been definitive: I think it better our acquaintance should close.
出自： E. Bowen