1. not discouraged or prevented from continuing by difficulties or opposition

Examples

• She remained undeterred by the criticism and continued her research.
• Undeterred by the rain, the hikers pressed on toward the summit.
• The team was undeterred by their early losses and fought back to win.
• He continued his job search, undeterred by multiple rejections.
• The protesters remained undeterred despite police warnings.
• Undeterred by the high cost, they decided to pursue their dream vacation.