1. Situated at or extending to great depth; too deep to have been sounded or plumbed
   "remote and unsounded caverns"
   - profound, unfathomed, unplumbed 
2. Not made to sound
   "in French certain letters are often unsounded"
   - silent

See also: deep, inaudible, unhearable

• gospeller
• Gospels
• goss
• gossamer
• gossamery
• gossan
• gossip
• gossip columnist
• gossiper
• gossiping
• gossipmonger
• gossipmongering
• gossipy
• Gossypium
• Gossypium arboreum
• Gossypium barbadense
• Gossypium herbaceum
• Gossypium hirsutum
• Gossypium peruvianum
• Gossypium thurberi
• gotcha
• Goth
• Gothenburg
• gothic
• Gothic arch