Stranded, in a way

• Quarantined
• Isolated
• On Alcatraz, e.g.
• On Alcatraz, e.g
• Like Crusoe
• Stranded like Crusoe
• Marooned
• Stuck after a plane crash, maybe

Wiktionary Word definitions in Wiktionary
a. Placed alone or apart, as if on an island.

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Enisled \En*isled"\, p. a. Placed alone or apart, as if on an island; severed, as an island. [R.] ``In the sea of life enisled.'' --M. Arnold.