1. able to be protected or defended against attack
Usage: military; strategic contexts
2. able to be justified or supported with good reasons

Examples

• The castle was built on a hill to make it more defensible against enemy attacks.
• The general chose a defensible position for his troops.
• Her argument about climate change is completely defensible with scientific evidence.
• The company’s decision to raise prices is defensible given rising costs.
• His actions were morally defensible under the circumstances.
• The lawyer presented a defensible case for her client’s innocence.
• The mountain pass provided a defensible route through enemy territory.