This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Of a kind and gentle disposition.

adj. Showing gentleness and mildness. See Synonyms at kind1.

adj. Tending to exert a beneficial influence; favorable: a policy with benign consequences for the economy. See Synonyms at favorable.

adj. Having little or no detrimental effect; harmless: a chemical additive that is environmentally benign.

adj. Medicine Of no danger to health; not recurrent or progressive; not malignant: a benign tumor.

adj. Kind; gentle; mild.

adj. Not posing any serious threat to health; not particularly aggressive or recurrent.

adj. Of a kind or gentle disposition; gracious; generous; favorable; benignant.

adj. Exhibiting or manifesting kindness, gentleness, favor, etc.; mild; kindly; salutary; wholesome.

adj. Of a mild type or character.

Of a kind disposition; gracious; kind; benignant; favorable.

Proceeding from or expressive of gentleness, kindness, or benignity.

Favorable; propitious: as, benign planets.

Genial; mild; salubrious: applied to weather, etc.

Mild; not severe; not violent; not malignant: used especially in medicine: as, a benign medicine; a benign disease.

adj. kindness of disposition or manner

adj. pleasant and beneficial in nature or influence

adj. not dangerous to health; not recurrent or progressive (especially of a tumor)

"‡ The term benign is used when describing tumors or growths that do not threaten the health of an individual."

kind    kindly   

malign    malignant   

salubrious    genial    liberal    bland    propitious    gracious    kind    favorable salutary    generous    favorable   

Aline    Cline    Combine    Dine    Heine    Jain    Klein    Kline    Quine    Rhine   

benevolent    gracious    mild    serene    malignant    benignant    bland    tolerant    affable    harmless