Decisive
Pronunciation : De*ci*sive
Part of Speech : a.
Etymology : [Cf. F. d?cisif. See Decision.]
Definition : 1. Having the power or quality of deciding a question or controversy; putting an end to contest or controversy; final; conclusive. "A decisive, irrevocable doom." Bates. "Decisive campaign." Macaulay. "Decisive proof." Hallam.
2. Marked by promptness and decision. A noble instance of this attribute of the decisive character. J. Foster.
Syn. -- Decided; positive; conclusive. See Decided. -- De*ci"sive*ly, adv. -- De*ci"sive*ness, n.
Source : Webster's Unabridged Dictionary, 1913