1. the quality or state of being physically strong, sturdy, or robust
2. the quality of being brave, determined, or resolute
3. the condition of being thick or heavy in build

Examples

• The stoutness of the oak tree helped it survive the storm.
• Her stoutness of heart carried her through difficult times.
• The rope’s stoutness made it perfect for heavy lifting.
• He admired the stoutness of her convictions.
• The bridge’s stoutness was tested by the heavy traffic.
• The stoutness of the fabric made it ideal for outdoor gear.