1. Not fastened together 
2. Not associated in an exclusive sexual relationship
   - uncommitted 
3. (of animals) able to swim about; not attached
   - free-swimming

See also: unconnected, unengaged, unpledged, unpromised, vagile

Antonym: attached

• Lassen Volcanic National Park
• lassi
• lassie
• lassitude
• lasso
• last
• last but not least
• Last Day
• Last Frontier
• last gasp
• last half
• last hurrah
• last in first out
• Last Judgement
• Last Judgment
• last laugh
• last mentioned
• last mile
• last name
• last not least
• last out
• last quarter
• last resort
• last respects
• last rites