Firmly or resolutely; used to emphasize a decisive or absolute stance.
彼は断然反対の立場を取った。
He took a resolutely opposing position.
私は断然その案に賛成だ。
I am absolutely in favor of that plan.
断然拒否すると相手に誤解を与えることもあるので注意が必要だ。
You should be careful when refusing outright, as it can give the other person the wrong impression.
Definitely/absolutely (used to assert that something is clearly wrong/different); expresses certainty.
その考えは断然間違っている。
That idea is definitely wrong.
彼女の答えは断然的外れていた。
Her answer was clearly off the mark.
このデータは断然違う傾向を示している。
These data show a decidedly different trend.
By far; far and away; used to indicate a large difference when comparing.
彼の実力は断然他の追随を許さない。
His ability is by far unmatched by others.
このモデルは断然売れている。
This model is selling by a long shot.
新製品は断然性能が良くなった。
The new product's performance has improved by far.