1. having a backbone or spinal column; vertebrate
Usage: biological/zoological term
2. having strength of character; resolute or determined
Usage: figurative

Examples

• Fish are backboned animals that live in water.
• Mammals are backboned creatures with internal skeletons.
• She is a backboned leader who stands by her principles.
• The team needed a backboned captain to guide them through the crisis.
• He showed a backboned response to the unfair criticism.
• Backboned vertebrates evolved over millions of years.