Translation guide
The English word 'decisive' can describe a person who makes decisions quickly and firmly, an action or event that settles an outcome, or a manner that is clear and definite. This guide helps learners express these nuances naturally in Japanese.
To describe someone who is able to make decisions quickly and confidently, without hesitation.
Literally 'has decisiveness'. This is the most natural way to describe a decisive person. It focuses on the ability to make decisions.
彼は決断力があるリーダーだ。
He is a decisive leader.
Describes someone who acts decisively without overthinking. Often used for personal decisions or actions.
彼女は思い切りがいいから、すぐに転職を決めた。
She is decisive, so she quickly decided to change jobs.
A formal, literary term meaning resolute and decisive. Rare in everyday conversation.
果断な処置が求められる。
Decisive measures are required.
To describe something that determines a final result or resolves a situation conclusively.
The most common translation for 'decisive' in the sense of determining an outcome. Used for factors, moments, victories, etc.
その証拠が決定的だった。
That evidence was decisive.
決定的な瞬間を逃した。
I missed the decisive moment.
Refers to the deciding factor or the final blow that settles something. Often used in contexts like games, arguments, or decisions.
A dramatic phrase meaning 'to decide one's fate'. Used for life-changing events.
その一戦が運命を決する戦いだった。
That battle was a decisive one that determined our fate.
To describe a way of speaking or acting that shows firmness and leaves no doubt.
Means firm, resolute. Often used with attitude, refusal, or action.
彼は断固とした口調で言った。
He said in a decisive tone.
An adverb meaning clearly, flatly, once and for all. Used with verbs like 言う (say) or 断る (refuse).
彼女はきっぱりと断った。
She refused decisively.
Means clearly, distinctly. Less forceful than きっぱりと, but still conveys a clear, unambiguous manner.
はっきりとした態度を示した。
He showed a decisive attitude.
決定的 is used for things that determine an outcome (decisive factor, decisive victory). 決断力がある is used for people who are decisive in making decisions. Do not confuse them.
彼は決断力がある。
He is decisive (as a person).
そのゴールが決定的だった。
That goal was decisive (it decided the game).
The direct translation 決定的な人 is unnatural. Use 決断力がある人 or 思い切りがいい人 instead.
His experience was the decisive factor.