also: あくごん
noun
abusive language; slander; insults
Refers to harsh, insulting, or slanderous words directed at someone. Often used in formal or written contexts.
彼は怒りのあまり、相手に悪言を浴びせた。
In his anger, he hurled insults at the other person.
悪言は慎むべきだ。
One should refrain from using abusive language.
Compound of 悪 (aku, 'bad, evil') and 言 (gen/gon, 'word, speech'). The reading あくげん is the standard on'yomi combination; あくごん is a less common variant.