1. the quality of being loyal, committed, and dependable
2. the quality of being physically strong and sturdy

Examples

• Her stalwartness to the cause never wavered despite the challenges.
• The team appreciated his stalwartness during the difficult project.
• The stalwartness of the old oak tree impressed visitors to the park.
• His stalwartness as a friend made him someone people could always count on.
• The stalwartness of the building’s foundation kept it standing through the earthquake.
• She demonstrated her stalwartness by working late every night to meet the deadline.