A firm belief in one's own powers
His self-assurance floored her.
Though he always sounded quietly confident, the new note in his voice was one of calm self-assurance.
exudes just a little too much self assurance for this part.
Bond's self-assurance was so impregnable that his women needed ludicrous identities and pumped-up sexuality to compete.
Basics of hold em internet If you`re going to play hold em internet, have self-assurance in yourself.