1. Having no owner
   - ownerless

Antonym: owned

• supersensitized
• supersession
• superset
• supersize
• superslasher
• supersonic
• superstar
• superstardom
• superstate
• superstition
• superstitious
• superstitious notion
• superstitiously
• superstore
• superstrate
• superstratum
• superstring
• superstructure
• supersymmetric
• supersymmetry
• supertanker
• supertax
• supertitle
• supertonic
• supertwister