1. Having no ribs or no visible ribs

Antonym: ribbed

• scuzz
• scuzzbag
• scuzzball
• scuzzbucket
• scuzzy
• scybalum
• Scyliorhinidae
• Scylla
• Scyphozoa
• scyphozoan
• scyphus
• scythe
• Scythia
• Scythian
• Scythian lamb
• SD
• Se
• sea
• sea anchor
• sea anemone
• sea animal
• sea ash
• sea aster
• sea bass
• sea bathing