1. (

• assurance ,
• self-assurance ,
• confidence ,
• self-confidence ,
• authority ,
• sureness

) freedom from doubt; belief in yourself and your abilities; "his assurance in his superiority did not make him popular"; "after that failure he lost his confidence"; "she spoke with authority" ;

2. (

• sureness ,

) the quality of being steady and unfailing; "sureness of hand" ;