irresonant
ˌɪrɪˈsɒnənt
Definitions
1. adjective
not resonating; lacking resonance
“The musician was disappointed that her instrument sounded irresonant in the empty concert hall.”
2. adjective
not giving an echo; lacking reverberation
“The room’s acoustics were poor, making the sound seem irresonant.”
3. noun
a sound that does not resonate or reverberate
“The engineer studied the characteristics of the irresonant sound in the recording studio.”