Benign definition

bĭ-nīn
Good-natured; kindly.
adjective
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Having little or no detrimental effect; harmless.

A benign chemical; benign indifference.

adjective
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(med.) Doing little or no harm; not malignant; specif., not cancerous.

Benign tumors.

adjective
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Favorable; beneficial.
adjective
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The definition of benign is something good, kind or not dangerous.

A non-cancerous tumor is an example of a benign growth.

Earth friendly cleaning products are an example of benign reactions to the environment.

adjective
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Of no danger to health; not malignant or disease-causing.

A benign tumor.

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Gentle or kind.
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Of no danger to health; not malignant or disease-causing.

A benign tumor.

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Tending to exert a beneficial influence; favorable.

A policy with benign consequences for the economy.

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Having little or no detrimental effect; harmless.

A benign chemical; benign indifference.

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Showing gentleness or kindness.

A benign smile.

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Not life-threatening or severe, and likely to respond to treatment, as a tumor that is not malignant.
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(medicine) Not posing any serious threat to health; not particularly aggressive or recurrent.
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Other Word Forms

Adjective

Base Form:
benign
Comparative:
benigner
Superlative:
benignest

Origin of benign

  • Middle English benigne from Old French from Latin benignus genə- in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Old French benigne, from Latin benignus (“kind, good”), from bonus (“good”) + genus (“origin, kind”). Compare malign.

    From Wiktionary