scoundrel

He called his opponent a scoundrel during the heated debate.

彼は激しい討論中に相手をならず者と呼んだ。

The scoundrel tricked elderly people out of their savings.

その悪党は高齢者から貯金を騙し取った。

She wrote about her experiences with McCarthyism in her memoir 'Scoundrel Time'.

彼女はマッカーシズムでの経験を回顧録『ならず者の時代』に書いた。