Synonyms of the word

nonmalignant

• adj. Not malignant, without malice.
• adj. (medicine) Of a growth in the body, not cancerous.

benign

• adj. Kind; gentle; mild.
• adj. (of a climate or environment) mild and favorable.
• adj. not harmful to the environment: [in combination] an ozone-benign refrigerant.
• adj. (medicine) Not posing any serious threat to health; not particularly aggressive or recurrent.

benignant

• adj. (now rare) Kind; gracious; favorable.

harmless

• adj. Incapable of causing harm or danger.
• adj. Not intended to harm; inoffensive.
• adj. Safe.