Equanimous(a.) of an even, composed frame of mind; of a steady temper; not easily elated or depressed.
Thesaurus Entries
affianced, arrogant, ascertained, aspiring, assurance, assuredness, attested, balanced, believing, betrothed, bound, certain, certified, certitude, clear-cut, cocksure, collected, committed, composed, compromised, confidence, confident, contracted, conviction, convinced, cool, covered, decided, definite, determinate, determined, devout, dogmatic, doubtless, engaged, ensured, equanimous, equilibrious, established, expectant, faithful, fideistic, fixed, fond, full of hope, game, guaranteed, hopeful, hoping, hubristic, imperturbable, impressed with, in good heart, in hopes, in the bag, insured, intended, levelheaded, made sure, nailed down, obligated, of good cheer, of good hope, on ice, open-and-shut, overconfident, oversure, overweening, persuaded, pietistic, pious, pistic, pledged, plighted, plucky, poised, pompous, positive, promised, pronounced, proud, proved, reassured, recollected, resolute, sanguine, satisfied, secure, secured, self-assured, self-confident, self-controlled, self-important, self-possessed, self-reliant, self-restrained, set, settled, sold on, spunky, stated, sure, sureness, surety, sworn, tested, together, tried, unafraid, under the impression, underwritten, undespairing, undoubtful, undoubting, unfaltering, unflappable, unhesitating, unruffled, unwavering, warranted, well-balanced