adj. 1 that decides an issue; conclusive. 2 (of a person, esp. as a characteristic) able to decide quickly and effectively. decisively adv. decisiveness n.
[ F décisif -ive f. med.L decisivus (as DECIDE) ]
DECISIVE
Meaning of DECISIVE in English
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012