Synonyms:
self-assured, self-confident
Meaning: showing poise and confidence in your own worth; "hardly more than a boy but firm-knit and self-confident"
Usage examples
The young fellow had the air of a self-confident rustic, with little experience in the world. Indeed, it seemed from his elated manner as if this might be his first trip from home, and the blowing of oil wells an incidental speculation.
"Reckon I don't know what I'm about?" Then wheeling off, and muttering in an under, self-confident tone, "Dang old Roper," continued he, "if he don't knock that cross to the north corner of creation and back again before a cat can lick her foot."