Have seen "definitive" thrown around a little too much here lately. I've had little flashes of the overuse "inconceivable" by Vizinni, and cannot help but think "You keep using that word. I do not think it means what you think it means."
de·fin·i·tive (d-fn-tv)
adj.
1. Precisely defined or explicit.
2. Supplying or being a final settlement or decision; conclusive.
3. Authoritative and complete: a definitive biography.
4. Biology Fully formed or developed, as an organ or structure.
n. Grammar
A word that defines or limits, such as the definite article or a demonstrative pronoun.
de·fini·tive·ly adv.
de·fini·tive·ness n.