急激
Common
I-adj
1
adjectival nouns or quasi-adjectives (keiyodoshi)
abrupto;súbito;fulminante
1
adjectival nouns or quasi-adjectives (keiyodoshi)
sudden;abrupt;rapid;sharp;drastic;radical
その党は急激にのびた。
The party gained ground rapidly.
Other forms
急劇 【きゅうげき】 (rarely used kanji form)