confident
arrogant
assure
assured
balanced
cocksure
collected
complacent
composed
convinced
decided
determined
equanimous
equilibrious
hubristic
levelheaded
overconfident
oversure
overweening
persuaded
poised
pompous
positive
proud
reassured
recollected
sanguine
secure
self-confident
self-controlled
self-important
self-possessed
self-reliant
self-restrained
self-satisfied
smug
sure
together
unafraid
undoubtful
undoubting
unfaltering
unhesitating
unwavering
well-balanced
autocratic
businesslike
cocky
debonair
impassive
masterful
noncommittal
purposeful
resourceful
self-centered
self-sufficient
unconcerned
unflappable
unperturbed
unruffled