sure of yourself

sure of (oneself)

Very self-confident. You can't go into that interview wondering if you're good enough for the job—if you're sure of yourself, the interviewer will be sure of you, too. A: "Well, Tammy's very sure of himself, isn't she?" B: "Yeah, we've never needed to worry about her succeeding in life."See also: of, sure

ˈsure of yourself

(sometimes disapproving) very confident: She seems very sure of herself.See also: of, sure