1. Situated at or extending to great depth; too deep to have been sounded or plumbed
   "unplumbed depths of the sea"
   - profound, unfathomed, unsounded

See also: deep

• cheilitis
• cheiloschisis
• cheilosis
• Cheiranthus
• Cheiranthus allionii
• Cheiranthus asperus
• Cheiranthus cheiri
• Chekhov
• Chekov
• chela
• chelate
• chelate compound
• chelated
• chelation
• chelicera
• cheliceral
• Chelicerata
• chelicerate
• chelicerous
• Chelidonium
• Chelidonium majus
• Chelifer
• Chelifer cancroides
• cheliferous
• cheloid