Definition of malignant
- a powerful and malignant influence
- the malignant tongues of gossipers
a highly malignant form of cancer
a powerful and malignant influence
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'malignant.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
First Known Use: 1542See Words from the same year
What made you want to look up malignant? Please tell us where you read or heard it (including the quote, if possible).
allowing a liquid or gas to pass through
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