1. Not permitting the passage of water
   - waterproof, waterproofed

See also: tight

• semifinal
• semifinalist
• semifluid
• semifluidity
• semiformal
• semigloss
• semihard
• semiliquid
• semiliterate
• semilunar
• semilunar bone
• semilunar cartilage
• semilunar valve
• semimajor axis
• semiminor axis
• semimonthly
• seminal
• seminal duct
• seminal fluid
• seminal vesicle
• seminar
• seminarian
• seminarist
• seminary
• seminate