IPA: /ˈbrɛθləsli/
KK: /ˈbrɛθləsli/
In a way that shows you are very excited or out of breath, often because of running or being very active.
She spoke breathlessly after running up the hill.
Breathlessly → It is formed from "breath" (from Old English "bræð", meaning the air taken in or expelled from the lungs) and "-less" (meaning without) and the adverbial suffix "-ly" (meaning in a manner of). The word "breathlessly" means in a manner without breath, often implying a state of excitement or exhaustion.
Think of being 'without breath' ('-less') and how that can happen when someone is very excited or tired. This helps you remember that 'breathlessly' describes doing something in a way that lacks breath.