Definitive1. (a.) Determinate; positive; final; conclusive; unconditional; express.
2. (a.) Limiting; determining; as, a definitive word.
3. (a.) Determined; resolved.
4. (n.) A word used to define or limit the extent of the signification of a common noun, such as the definite article, and some pronouns.
Thesaurus Entries
absolute, accurate, actual, admitting no exception, all-out, arrant, authoritative, boundary, categorical, caudal, clarifying, classical, clean-cut, clear, clear-cut, closing, complete, completing, concluding, conclusive, confining, consummate, crass, decided, decisive, defining, definite, determinate, determinative, determining, downright, egregious, ending, endmost, entire, eventual, exact, exclusive, exhaustive, explicit, express, extreme, farthest, final, finishing, fixed, flagrant, flat, flat-out, glaring, global, gross, implicit, inappealable, indisputable, intolerable, last, limitary, limitative, limiting, out-and-out, outright, peremptory, perfect, polar, positive, precious, precise, profound, pronounced, proper, rank, real, regular, reliable, restricting, restrictive, round, settling, shattering, shocking, specific, stark, stark-staring, straight, straight-out, superlative, surpassing, tail, terminal, terminating, terminative, the veriest, thorough, thoroughgoing, through and through, total, ultimate, unambiguous, unbearable, uncircumscribed, unconditional, unconditioned, unconscionable, undeniable, undoubting, unequivocal, unhampered, unhesitating, unlimited, unmistakable, unmitigated, unqualified, unquestioning, unrelieved, unreserved, unrestricted, unspoiled, unwaivable, utter, whole, without exception, without reserve