na-adjective, noun
Describes a person, decision, or action that is firm, quick, and without hesitation. Often used in formal or written contexts.
彼は果断な判断で問題を解決した。
He solved the problem with a decisive judgment.
果断な措置を取る必要がある。
We need to take drastic measures.
Compound of 果 (result, decisive) and 断 (cut off, decide). The combination conveys the idea of cutting off hesitation and reaching a result firmly.