Antonyms for spiteful

hurtful, nasty:

friendly, pleasant, good, sympathetic, thoughtful, helpful, gentle, lovable, forgiving, loving, pleasing, nice, kind, affectionate.

noun:

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