Confident
Part of speech: adjective
Definition: being very sure of or positive about something self-confident
Example sentence: If you are confident about yourself and wear what you love, you will exude a style of your own.
Overconfident
Part of speech: adjective
Definition: too confident.presumptuous, cocksure, rude and disrespectful.
Example sentence: I think I have let ego get in the way sometimes - the pendulum swung pretty strongly. I was maybe a little overconfident at one point in my time, and then I went way the other way and thought I wasn't capable of anything.