1. not adjusted to the correct pitch or frequency
Usage: music
2. not properly adjusted or calibrated
Usage: technical

Examples

• The untuned piano sounded terrible during the recital.
• Her violin was untuned after sitting in the cold car.
• The untuned radio produced only static and garbled voices.
• The mechanic found that the untuned engine was running poorly.
• The untuned guitar strings made the song sound off-key.
• An untuned instrument can ruin an entire performance.