Ugly
Mean, Offensive
noun, な adjective
Ugly, bad things are ugly, mean, and offensive.
しゅうあく
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
「被害者たたき」ってほんと醜悪だよね。
Victim-blaming is really ugly, isn't it?
「醜悪な文章は健全なディベートの害になるか」というテーマの研究を行っています。
I'm conducting research on the topic, "Is offensive writing detrimental to healthy debate?"
老婆の幽霊が、醜悪な顔でこちらをにらんでいた。
The old woman’s ghost glared at me with her ugly face.