malignant

word

Definition

Describes something very harmful and dangerous, especially used for cancers that can spread and worsen, or for someone or something showing strong ill will.

Usage & Nuances

Mostly formal or medical; in medicine, 'malignant tumor/cancer' means spreading and dangerous, the opposite of 'benign.' Less commonly describes people or intentions with strong evil or harmful purpose.

Example Sentences

A malignant cell divides rapidly and spreads.

basic

Don't worry, the doctor said it's not malignant.

natural

She had a malignant look in her eyes when she spoke to him.

natural

Some rumors can be malignant, causing a lot of harm to people.

natural

The doctors said the tumor was malignant.

basic

He was diagnosed with a malignant form of cancer.

basic