Unrelinquished

The prisoner's unrelinquished hope of escape led to many failed attempts.

The victim's unrelinquished fear of the attacker made it difficult for her to move on.

His unrelinquished obsession with her made her feel uncomfortable.

The prisoners' unrelinquished hope for freedom kept them going.

Her unrelinquished love for him kept her by his side.

The student's unrelinquished desire to succeed helped her achieve academic excellence.