Wiktionary
breathlike
a. Resembling or characteristic of breath.
Usage examples of "breathlike".
Only when they were very close, could the men in the room hear the remarkably silent mechanism which propelled them, the breathlike sound which the large propeller made in turning.
But the Hardys could also hear a hollow, echoing, breathlike sound from the fort!
It came from the substance of the Mountain itself, which glowed and faded in a slow breathlike rhythm, with a mother-of-pearl radiance.