1. not fastened or connected to something
2. not married or in a romantic relationship
3. not associated with or belonging to a particular group or organization

Examples

• The unattached cable was causing the computer to malfunction.
• She found several unattached buttons in her sewing box.
• He’s been unattached since his divorce last year.
• Many unattached young professionals attended the networking event.
• The journalist worked as an unattached freelancer.
• The unattached researcher conducted independent studies.
• The unattached trailer rolled down the hill.