| 1. | without breath or breathing with difficulty; gasping; panting: We were breathless after the steep climb. |
| 2. | with the breath held, as in suspense, astonishment, fear, or the like: breathless listeners of the mystery story. |
| 3. | causing loss of breath, as from excitement, anticipation, or tension: a breathless ride. |
| 4. | dead; lifeless. |
| 5. | motionless or still, as air without a breeze: a breathless summer day. |