1. the quality of being confident and certain about something

Examples

• She spoke with complete assuredness about her decision.
• His assuredness in the interview impressed the hiring committee.
• The teacher’s assuredness helped calm the nervous students.
• Despite the challenges, she maintained her assuredness throughout the project.
• The CEO’s assuredness during the crisis reassured investors.
• His lack of assuredness was evident in his hesitant responses.