Adverb
1. in a desperate manner;
"she fought back madly"2. in an insane manner;
"she behaved insanely""he behaves crazily when he is off his medication""the witch cackled madly""screaming dementedly"3. (used as intensives) extremely;
"she was madly in love""deadly dull""deadly earnest""deucedly clever""insanely jealous"