Synonyms and related words :
against, airtight, antagonistic, antipathetic, at odds, averse, ballproof, beyond control, bombproof, bony, breachy, breakaway, bulletproof, burglarproof, cartilaginous, cement, cemental, chewy, clashing, cohesive, complaining, concrete, conflicting, contradicting, contradictory, contumacious, coriaceous, corneous, corrosionproof, counteractant, counteracting, counteractive, countervailing, counterworking, cranky, crotchety, cursory, dampproof, defiant, dense, diamondlike, differing, disagreeing, disinclined, disobedient, disputatious, disputing, dissentient, dissenting, dissident, durable, dure, fibrous, fire-resisting, fireproof, flameproof, flintlike, flinty, foolproof, forced, fractious, granitelike, granitic, gristly, hard, hard as nails, hardhearted, hardy, hermetic, holeproof, horny, hostile, immovable, immune, impervious, impervious to, incorrigible, indisposed, indocile, indomitable, inimical, insuppressible, intractable, intransigent, involuntary, iron-hard, ironlike, irrepressible, lapideous, lasting, leakproof, leatherlike, leathery, lithoid, lithoidal, marble, marblelike, mutinous, noiseproof, nonconformist, noncooperative, nonsusceptible to disease, obdurate, objecting, obstinate, obstreperous, obstructive, on the barricades, opposed, opposing, oppositional, oppugnant, osseous, out of hand, perfunctory, perverse, proof, proof against, protesting, punctureproof, reactionary, rebellious, recalcitrant, refractory, reluctant, renitent, repellent, repugnant, resisting, resistive, restive, retardant, retardative, revolutionary, rocklike, rocky, ropy, rustproof, shatterproof, shedding, shellproof, shrewish, sinewy, solid, soundproof, steellike, steely, stiff, stonelike, stony, stringy, strong, stubborn, sulky, sullen, tenacious, tight, tough, tough as leather, unaffected, unbiddable, uncompliant, unconsenting, uncontrollable, uncooperative, ungovernable, unmalleable, unmanageable, unmoldable, unruly, unsubmissive, untiring, unwilling, unyielding, up in arms, vigorous, viscid, watertight, weatherproof, wild, wiry, withstanding