IPA: /ˈskɔːrnfəl/
KK: /ˈskɔrnfəl/
Showing a lack of respect or contempt for someone or something.
She gave a scornful laugh when she heard the ridiculous suggestion.
Scornful is formed from "scorn" (from Old French *escarne*, meaning to mock or deride) and "-ful" (meaning full of). The word describes a state of being full of scorn or contempt.
Think of being 'full of' ('-ful') 'mockery' ('scorn') — that's why scornful means showing contempt.