1. the ability to survive difficult conditions; toughness or resilience
2. boldness or daring in facing danger or difficulty

Examples

• The hardiness of desert plants allows them to survive extreme heat and drought.
• Mountain climbers need physical hardiness to endure harsh weather conditions.
• The pioneer’s hardiness helped her family survive the brutal winter.
• These flowers are prized for their hardiness in cold climates.
• His hardiness in battle earned him respect among his fellow soldiers.
• The hardiness of the old oak tree was evident after it survived the storm.