► 副詞
がくんと [(2)がくんと] meaning: drastic rank: 2
☆ その製品の売上ががくんと落ちた ⇨ The sales of the product suddenly plummeted (☛ Suddenly and drastically)
がたんと [(2)がたんと] meaning: drastic rank: 2
☆ 売行きがガタンと落ちた ⇨ The sales dropped drastically
がたっと [(2)がたっと] meaning: drastic rank: 3
☆ 彼の人気はがたっと落ちた ⇨ His popularity fell suddenly and drastically
► 形容動詞
急激 [きゅうげき] meaning: drastic rank: 2
☆ ガソリンの値段が急激に上昇した ⇨ The gas price has gone up drastically (☛ Suddenly and drastically)
爆発的 [ばくはつてき] meaning: drastic rank: 2
☆ その病気は爆発的に広がった ⇨ The disease spread explosively
☆ 彼女は爆発的に人気が出た ⇨ Her popularity soared explosively