nonechoic

/nɑnˈɛkoʊɪk/
adjective
  1. Not producing or reflecting sound; lacking echo or reverberation.
    • The recording studio was designed to be nonechoic so that every note was crisp and clear.
    • We hung thick curtains to make the room nonechoic for our podcast recordings.
    • The empty gymnasium felt strangely nonechoic after the acoustic panels were installed.
Synonyms
What does "nonechoic" mean? | whatsthatwordmean | whatsthatwordmean