Evil Woman, Wicked Woman, Bad Woman
noun
A bad woman is an evil woman. Surprisingly, "mother in law" is not one of the meanings for this word.
あくじょ
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
あの悪女、耳だけはいいんだよな。
That bitch sure has good ears!
かの女は悪女だが、いつも時間はきっちり守る。
She is a wicked woman, but is always on time.
その悪女は息をのむほど美しかった。僕は彼女に夢中だった。
The evil woman took my breath away. I was crazy about her.