(a.) Confident of one's own strength or powers; relying on one's judgment or ability; self-reliant.

arrogant assertive assured balanced cocksure collected composed confident convinced decided definite determined equanimous equilibrious erect house-proud hubristic independent levelheaded overconfident oversure overweening persuaded poised pompous positive prideful proud proud as Lucifer proud-blooded proud-looking proud-minded proud-spirited proudful proudhearted purse-proud reassured recollected sanguine secure self-assured self-controlled self-esteeming self-important self-possessed self-reliant self-respecting self-restrained self-sufficient stiff-necked sure together unafraid undoubtful undoubting unfaltering unhesitating unwavering well-balanced