diminishingsound
nounUK /dɪˈmɪnɪʃɪŋ saʊnd/
US /dɪˈmɪnɪʃɪŋ saʊnd/
A sound that is getting quieter and quieter.
The diminishing sound of the train told us it was far away.
OTHER MEANINGS
2. A noise that slowly becomes weaker until it can no longer be heard.
We listened to the diminishing sound of footsteps down the hall.
3. The last, faint part of a sound as it fades away.
Only a diminishing sound remained after the bell stopped ringing.
4. A sound that loses strength over time, like music growing softer.
The diminishing sound of the band drifted across the park.