What does "madly" mean?

In a mad manner; without reason or understanding; wildly.

What is a synonym for "madly"?

Common synonyms include: frantically, a corps perdu, absurdly, all to pieces, angrily, ardently.

/ˈmædli/ adv

adv ·Moderate ·College level

Adverb

1
In a mad manner; without reason or understanding; wildly.
"I'm madly in love with you."
2
In a mad manner; angrily
"Diane screamed madly down the phone to the prank caller."
3
In a mad manner; extremely surprisingly or unexpectedly
"In a way the better procedures you have I think, bizarrely and madly it actually serves to increase rather than decrease the problem"

Adverb

"He is madly in love with that girl."

From Middle English madly, madli, medliche, equivalent to mad + -ly.