Confident

Self-assured

Synonyms: Self-assured, sure of oneself, positive, self-assertive, believing in oneself, poised, cool, calm, and collected, level-headed, nonchalant, imperturbable, impassive, tranquil, at ease, together, laid-back, equanimous, assured, self-confident, assertive, self-possessed, self-reliant, filled with aplomb, cool-headed, collected, phlegmatic, composed, unperturbed, unruffled, serene, relaxed, unflappable, unfazed, and nonplussed.

Optimistic

Synonyms: Optimistic, sanguine, certain, convinced, unshakeable in one's belief, easy in one's mind, assured, have no doubt, hold the unwavering view, hopeful, sure, positive, in no doubt, secure in one's belief, satisfied, persuaded, and not question.

Example Sentences

She spoke with confident authority.

He approached the task confidently.

With confident strides, he advanced.

They delivered their speech confidently.