adjective
determined, strong-willed
Synonyms: adamant, bold, constant, courageous, dead set on, decided, dogged, faithful, firm, fixed, immutable, inflexible, intent upon, intrepid, loyal, meaning business, obstinate, persevering, persistent, persisting, purposeful, relentless, resolved, serious, set, settled, staunch, steadfast, steady, strong, stubborn, tenacious, true, unbending, unchanging, uncompromising, undaunted, unfaltering, unflagging, unflinching, unshakable, unshaken, unwavering, unyielding, valiant
Antonyms: afraid, cautious, cowardly, irresolute, weak