(n.) The quality or state of being self-confident; self-reliance.

aplomb arrogance assurance assuredness balance belief boastfulness certitude cockiness cocksureness conceit confidence confidentness conviction courage equability equanimity equilibrium face faith haughtiness hubris independence level head levelheadedness overconfidence oversureness overweening overweeningness pardonable pride poise pomposity positiveness possession presence of mind pride pridefulness proudness purse-pride restraint sanguineness security self-assurance self-command self-consequence self-control self-esteem self-importance self-possession self-reliance self-respect self-restraint self-sufficiency settled belief stiff-necked pride stiff-neckedness subjective certainty sureness surety trust vanity well-regulated mind