Synonyms and Antonyms of tenacious
- a tenacious trainer, she adheres to her grueling swimming schedule no matter what
assured, certain, dedicated, determined, firm, hell-bent, intent, positive, resolute, resolved, single-minded, sure
adamant, bullheaded, dogged, hardened, hardheaded, headstrong, implacable, indurate, mulish, obdurate, obstinate, opinionated, peevish, pertinacious, perverse, pigheaded, self-willed, stiff-necked, stubborn, unregenerate, unyielding, willful (or wilful)
unfaltering, unhesitating, unwavering
resistant, wayward, wrongheaded
constant, devoted, faithful, good, loyal, staunch (also stanch), steadfast, steady, true
hard, inflexible, relentless, stern, unbending, unflinching, unrelenting
- you'll have a devil of a time getting those tenacious burrs off of your wool sweater