Terrible; dreadful; extremely intense in a frightening or awful way.
事故の現場は凄まじい光景だった。
The scene of the accident was dreadful.
凄まじい勢いで火が燃え広がった。
The fire spread with terrible force.
戦場で目にした光景は凄まじく、言葉を失った。
The sights seen on the battlefield were appalling; I was left speechless.
Tremendous; amazing; exceptionally great or powerful. Can be used positively to express overwhelming size or ability.
彼の演奏は凄まじい集中力と技術の高さを示していた。
His performance showed tremendous concentration and technical skill.
その映画は興行収入で凄まじい成功を収めた。
The movie achieved tremendous success at the box office.
彼女の記憶力は凄まじく、一度聞いただけで覚えてしまう。
Her memory is amazing; she remembers things after hearing them once.
Appalling; shocking; astonishing in a way that is hard to believe.
彼の説明には凄まじい矛盾があり、信用できなかった。
There were astonishing contradictions in his explanation, and it couldn't be trusted.
凄まじい速さで物価が上がり、生活が苦しくなった。
Prices rose at an astonishing rate, making life difficult.
その計画の無謀さには凄まじいものがある。
There is something staggering about the recklessness of that plan.