Tenacious

a.	1.	Holding fast, or inclined to hold fast; inclined to retain what is in possession; as, men tenacious of their just rights.
	2.	Apt to retain; retentive; as, a tenacious memory.
	3.	Having parts apt to adhere to each other; cohesive; tough; as, steel is a tenacious metal; tar is more tenacious than oil.
	4.	Apt to adhere to another substance; glutinous; viscous; sticking; adhesive.
	5.	Niggardly; closefisted; miserly.
	6.	Holding stoutly to one's opinion or purpose; obstinate; stubborn.

Adj.	1.	tenacious - stubbornly unyielding; "dogged persistence"; "dour determination"; "the most vocal and pertinacious of all the critics"; "a mind not gifted to discover truth but tenacious to hold it"- T.S.Eliot; "men tenacious of opinion" Synonyms: bulldog, dogged, dour, pertinacious, unyielding
	2.	tenacious - (of memory) having greater than average range; "a long memory especially for insults"; "a tenacious memory" Synonyms: long
	3.	tenacious - sticking together; "two coherent sheets"; "tenacious burrs" Synonyms: coherent

adamant, adherent, adhesive, amylaceous, assiduous, balking, balky, bigoted, bound, bound and determined, bulldogged, bulldoggish, bulldoggy, bulletheaded, bullheaded, cartilaginous, case-hardened, chewy, clabbered, clammy, clinging, clingy, clotted, coagulated, cohesive, committed, constant, continuing, coriaceous, curdled, decided, decisive, dedicated, definite, devoted, diligent, dogged, dogmatic, doughy, durable, earnest, enduring, faithful, fanatic, fibrous, firm, fixed, game, gamy, gaumy, gelatinous, glairy, gluelike, gluey, glutenous, glutinose, glutinous, good, gooey, grasping, gripping, gristly, gritty, grumous, gumbo, gumbolike, gumlike, gummous, gummy, gutsy, gutty, hard, hardheaded, hardy, headstrong, heavy, holding, immovable, immutable, inalterable, indefatigable, indomitable, industrious, inflexible, insistent, inspissated, intolerant, intransigent, invincible, jelled, jellied, jellylike, keeping, lasting, leatherlike, leathery, loyal, maintaining, mettlesome, mucilaginous, mulish, nervy, never-tiring, obdurate, obstinate, opinionated, overzealous, pasty, patient, patient as Job, permanent, perseverant, persevering, persisting, pertinacious, pigheaded, plodding, plucky, plugging, preoccupied, purposeful, rapt, red-blooded, refractory, relentless, resistant, resolute, resolved, restive, retaining, retentive, rigid, ropy, secure, sedulous, self-adhesive, self-willed, serious, set, sincere, sinewy, single-minded, slabby, sleepless, slimy, slithery, slogging, spirited, spiritful, spunky, stable, stalwart, starchy, staunch, steadfast, steady, stickable, sticky, stiff, stiff-necked, stodgy, stout, stringy, strong, strong-minded, strong-willed, strongheaded, stubborn, sturdy, sulky, sullen, syrupy, tacky, thick, thickened, tight, tireless, tough, tough as leather, tremelloid, tremellose, true, unabating, uncompromising, unconquerable, uncooperative, undaunted, undiscouraged, undrooping, unfailing, unfaltering, unflagging, unflinching, unintermitting, uninterrupted, unnodding, unregenerate, unrelaxing, unrelenting, unremitting, unshakable, unshakeable, unshaken, unsleeping, unswerving, untiring, unwavering, unwearied, unwearying, unwinking, unyielding, utterly attentive, vigorous, viscid, viscose, viscous, weariless, wholehearted, willful, wiry