/ ˈbreθləs; NAmE / adjective
1.
having difficulty in breathing; making it difficult for sb to breathe :
He arrived breathless at the top of the stairs.
They maintained a breathless (= very fast) pace for half an hour.
2.
breathless (with sth) ( formal ) experiencing, or making sb experience, a strong emotional reaction :
breathless with terror
the breathless excitement of seeing each other again
3.
( formal ) with no air or wind :
the breathless heat of a summer afternoon
► breath·less·ly adverb
► breath·less·ness noun [ U ]