maligno

maligno mah-leeg'-noh (adjective)
evil, malignant
1. Hay quien cree que los gatos son malignos, pero prefiero un gato que un perro.

There are those who think cats are evil, but I'd prefer a cat to a dog.

2. Hoy recibimos las buenas noticias: el tumor de mi abuelo no es maligno.

We received the good news today: my grandfather's tumor isn't malignant.