noun
supervillain; arch-villain
Refers to a major villain, often in comics, movies, or fiction, with a nuance of being especially evil or powerful.
その映画の超悪玉は、世界征服を企んでいた。
The supervillain in that movie was plotting world domination.
彼はコミックに出てくる
He's like a supervillain straight out of a comic book.