noun, takes する, transitive verb

  1. changing (something) for the worse, disimprovement, deterioration.

Variations

Pronunciation Kanji Kana Is Common
改悪 かいあく

Contained Kanji Breakdown

reformation, change, modify
カイ あらた.める (4th, N2)
self
コ おのれ キ (6th, N1)
strike, hit, folding chair radical variant (no. 66)
ホク (Kentei 1)
person, (人 variant)
mow, cut grass, subdue
ガイ ゲ おさ.める (Kentei 1)
bad, vice, rascal
わる.い アク オ (3rd, N4)
Asia, rank next, come after
ア つ.ぐ や (Early High School, N1)
two, two radical (no. 7)
ニ ふた ふだ (1st, N5)
mouth
くち コウ ク (1st, N4)
heart, mind, spirit
こころ シン (2nd, N4)