pertinacious
I
adjective
adamant, adhering to a purpose, assidous, bent, bullheaded, certain, continuing, decided, determined, diligent, dogged, earnest, enduring, exhibiting purpose, faithful, firm, hard to get rid of, headstrong, holding to a purpose, immovable, immutable, implacable, indefatigable, indomitable, industrious, inexorable, inflexible, insistent, intent, intractable, inveterate, mulish, never-tiring, never-wearying, obdurate, obstinate, obstinatus, painstaking, patient, persevering, persistent, persisting, pertinax, pervicacious, pervicax, pigheaded, plodding, purposeful, relentless, resolute, resolved, rigid, sedulous, self-willed, serious, set, single-minded, stalwart, stanch, steadfast, steady, strong-willed, stubborn, sure, tough, unbending, uncompromising, undaunted, undeviating, undistracted, undoubting, unfaltering, unflagging, unflinching, unmovable, unrelaxing, unrelenting, unremitting, unshakable, unshaken, unshrinking, unswerving, untiring, unwavering, unwearying, unyielding, willful, zealous
II
index
diligent, faithful (diligent), inexorable, inflexible, insistent, intractable, obdurate, patient, persistent, purposeful, relentless, resolute, sedulous, steadfast, unrelenting, unremitting, unyielding
Burton's Legal Thesaurus.
William C. Burton.
2006