IPA: /ˈskɔrnfəl/
KK: /ˈskɔrnfəl/
The state or quality of showing a strong feeling of dislike or disrespect towards someone or something.
Her scornfulness was evident when she dismissed his ideas without consideration.
Scornfulness is formed from "scorn" (from Old French *escarne*, meaning to mock or deride) and "-fulness" (meaning the state of being full of). The word describes the state of being full of scorn or contempt.
Think of being 'full of' ('-fulness') 'mockery' or 'derision' ('scorn') — that's what scornfulness means.