subjacent /sub-jāˈsənt/

1. Underlying
2. (of a rock mass) having no perceptible base, bottomless (geology)

• supersophisticated
• supersound
• supersounds
• superspecies
• superspeed
• superspeeds
• superspies
• superspy
• superstar
• superstardom
• superstardoms
• superstars
• superstate
• superstates
• suretied
• sureties
• surety
• suretying
• suretyship
• suretyships
• surf
• SURF
• surface
• surface-active
• surface activities