1. producing no echo; not reflecting sound
2. lacking resonance or reverberation; acoustically dead
Usage: technical

Examples

• The recording studio was designed to be echoless, with special foam panels on every wall.
• She spoke into the echoless chamber and heard only her own voice, unmodified.
• The anechoic room felt strangely oppressive, its echoless quality making even whispers seem isolated.
• Engineers tested the microphone in an echoless environment to capture pure sound.
• The echoless hallway absorbed all noise, creating an eerie silence.