Full of self-assurance, self-possessed, confident, bold; in a bad sense: Self-satisfied, presumptuous.

Full of assurance, self-reliant, bold; sure of oneself, one's cause, etc.; having no fear of failure.

Having confidence in one's abilities, qualities, and judgement; characterized by self-confidence.

That has been empowered (in various senses of the verb); (in later use) esp. (of a person, group of people, etc.) having the ability or confidence…

Self-confident, esp. to the point of arrogance or hubris.

Confident, bold. Obsolete. rare.

That asserts his or her status, individuality, rights, opinions, etc.; full of or characterized by self-assertion. Cf. self-assertive, adj.

In a neutral or positive sense: self-assured, bold, or spirited; cheeky; vigorous, lively. Frequently with reference to speech: confidently sharp…