1. the quality or state of being devout; sincere and earnest religious belief and practice
2. sincere and dedicated commitment to a cause, person, or activity
Usage: often used outside strictly religious contexts

Examples

• Her devoutness was evident in her daily prayers and charitable work.
• The monk's devoutness inspired others in the monastery.
• He approached his studies with a devoutness that impressed his teachers.
• Their devoutness to the cause never wavered despite setbacks.
• The community respected her devoutness and moral integrity.
• His devoutness to family values shaped all his decisions.