Though nobody spoke to him of the affair after class he could feel about him a vague general malignant joy.
While he was still repeating the CONFITEOR amid the indulgent laughter of his hearers and while the scenes of that malignant episode were still passing sharply and swiftly before his mind he wondered why he bore no malice now to those who had tormented him.
God had allowed him to see the hell reserved for his sins: stinking, bestial, malignant, a hell of lecherous goatish fiends.
There are no more uses of "malignant" in the book.
Show samples from other sources
Gey and his wife, Margaret, had spent the last three decades working to grow malignant cells outside the body, hoping to use them to find cancer’s cause and cure.
Rebecca Skloot -- The Immortal Life of Henrietta Lacks
He hit it [the shark] without hope but with resolution and complete malignancy.