dull sound

Translations
глухой звук
A dull sound echoed through the hallway.
Глухой звук эхом разнесся по коридору.
Definitions
A dull sound is a noise that is low in pitch, muffled, or lacking in resonance, often characterized by a lack of clarity or sharpness.
Words
sound

noun
звук
dull

adjective
скучный