- without breath or breathing with difficulty; gasping; panting: We were breathless after the steep climb.
- with the breath held, as in suspense, astonishment, fear, or the like: breathless listeners of the mystery story.
- causing loss of breath, as from excitement, anticipation, or tension: a breathless ride.
- dead; lifeless.
- motionless or still, as air without a breeze: a breathless summer day.
- out of breath; gasping, etc
- holding one's breath or having it taken away by excitement, etc
- (esp of the atmosphere) motionless and stifling
- lifeless; dead
