madly
mad-ly
adverb
To an extreme or intense degree; very much or passionately.
"She is madly in love with him."
adverb
In a wild, uncontrolled, or insane manner, often due to strong emotion.
"He ran madly down the street."
Thesaurus
Synonyms: dementedly, insanely, crazily, frantically, devilishly, deucedly, deadly
Antonyms: sanely