It's any percussion instrument that when played doesn't have a specific pitch.
Untuned omfg
Bongos are untuned
Untuned, because it doesn't play a specific pitch.
In the untuned percussion, we have Cymbals, Snare and tenor drums, and the bass drum.
both
drum untuned
Rainmakers are untuned.
Untuned omfg
Bongos are untuned
The difference between a tuned instrument and an untuned is that a tuned instrument can play a tune, whilst an untuned instrument can only play a rhythm.
Oboe
Untuned, because it doesn't play a specific pitch.
In the untuned percussion, we have Cymbals, Snare and tenor drums, and the bass drum.
What the previous answer was about was a ruler. That is complete nonsense. The real answer is precussion. Drums. Most all cultures have drums or some form of precussion.
both
yes
Brass, woodwind, precussion