decisive
UK/dɪˈsaɪsɪv/US/di'saisiv/
六级考研B2
释义
adj.
Settling an issue or producing a definite result; conclusive.
决定性的；起决定作用的。
adj.
Able to make decisions quickly and firmly.
果断的；坚决的。
词根拆分
词根派生de-（离开）+ cis（切）+ -ive（倾向于）=「倾向于切断的」。decisive victory（决定性胜利）把胜负一刀切死——再无悬念。decisive person（果断的人）干净利落地切开选项，毫不拖泥带水。两个义项是同一画面：干净、最终的一刀。
词根 cid 还连着 44 个词例句
- 1.
Their goal in extra time proved decisive.
他们在加时赛的进球成了决定性的一击。
- 2.
A good leader has to be decisive, even with incomplete information.
好的领导者即便信息不全也必须果断。
易混词辨析
decisive 与 decided —— decisive 形容下刀干净的人或因素（decisive manager 果断的经理、decisive battle 决定性战役）。decided 形容明确无疑的性质（decided advantage 明显的优势、decided difference 显著的差别）。你可以有 decided advantage（明显优势）却并不 decisive（果断）。