1. the quality or state of being stable; firmness in position or equilibrium
2. the quality of being unlikely to change or fail; reliability or permanence
3. emotional steadiness; mental balance

Examples

• The bridge’s stability was tested during the earthquake.
• Political stability is essential for economic growth.
• She admired his emotional stability during the crisis.
• The company’s financial stability attracted new investors.
• The medication helped improve her mental stability.
• Engineers checked the structural stability of the building.
• The region has enjoyed decades of political stability.