Antonyms for malevolent

hateful:

harmless, loving, benevolent, pleasant, liking, kind, amiable, friendly, nice, good.

noun:

beneficent, unmalicious, amiable, friendly, gracious, affectionate, humanitarian, warm, cordial, pleasant, loving, amorous, genial, high-minded, philanthropic, noble, agreeable, nice, sweet, affable, benign, magnanimous, altruistic.