Noun has 2 senses

• spitefulness(n = noun.feeling) malice, maliciousness, spite, venom - feeling a need to see others suffer;

Derived form adjective spiteful₁

• spitefulness(n = noun.attribute) bitchiness, cattiness, nastiness, spite - malevolence by virtue of being malicious or spiteful or nasty;

Derived form adjective spiteful₁