Synonyms for Pertinacious:

• adj.

  •bullheaded (adjective)
  • unshakable.
  •deaf (adjective)
  • to listen blind,
  • head-strong,
  • unhearing.
  •difficult (adjective)
  • intractable.
  •diligent (adjective)
  • un flagging,
  • more persisting,
  • grindest,
  • more diligent,
  • un relenting,
  • most plugging,
  • Operose,
  • steadfast,
  • un-relenting,
  • more plugging,
  • most persisting,
  • un-flagging.
  •doctrinaire (adjective)
  • doctrinaire,
  • dictative.
  •dogged (adjective)
  • un bending,
  • in-exorable,
  • staunch,
  • single minded,
  • re solute,
  • in exorable,
  • un-shakable,
  • more perseverative,
  • un shakable,
  • more perseverant,
  • re-solute,
  • un-bending,
  • most perseverative,
  • most perseverant.
  •hard-nosed/hardheaded (adjective)
  • most toughnut,
  • levelheaded,
  • more toughnut,
  • more unsentimental,
  • un sentimental,
  • hard-nosed,
  • more tough-nut,
  • more tough nut,
  • hard boiled,
  • toughnut,
  • most tough-nut,
  • most hardheaded,
  • more hard nosed,
  • most tough nut,
  • hard nosed,
  • most unsentimental,
  • un-sentimental.
  •hardheaded (adjective)
  • hardheaded,
  • level headed.
  •importunate (adjective)
  • Harassing,
  • overly solicitous.
  •incompliant (adjective)
  • in-compliant,
  • muler,
  • most brassbound,
  • in compliant,
  • more brassbound,
  • mulest.
  •indefatigable (adjective)
  • un-flinching,
  • bound determined,
  • stop nothing,
  • stop at nothing,
  • in-exhaustible,
  • most unwearying,
  • un faltering,
  • un remitting,
  • un-wavering,
  • in exhaustible,
  • more unwearying,
  • un wearying,
  • hell bent,
  • un flinching,
  • nose grindstone,
  • un-faltering,
  • un-remitting,
  • un-wearying,
  • un-wearied,
  • hell-bent,
  • un wearied,
  • un wavering.
  •indomitable (adjective)
  • un-assailable,
  • un-beatable,
  • in-surmountable,
  • in-superable,
  • un-conquerable,
  • in superable,
  • in vincible,
  • un conquerable,
  • in-vulnerable,
  • more undefeatable,
  • un beatable,
  • most undefeatable,
  • in surmountable,
  • un assailable,
  • in vulnerable,
  • in-vincible.
  •intractable (adjective)
  • most bull headed,
  • in tractable,
  • bull headed,
  • in-tractable,
  • pig headed,
  • most bull-headed,
  • more bull-headed,
  • more bull headed.
  •intractable /intransigent (adjective)
  • un-governable,
  • un pliablest,
  • un-pliablest,
  • un-compromising,
  • hardline,
  • un manageable,
  • un pliabler,
  • unpliabler,
  • in-docile,
  • in soluble,
  • in docile,
  • un pliable,
  • un cooperative,
  • un-pliabler,
  • set stone,
  • un disciplined,
  • in-soluble,
  • un compromising,
  • un-manageable,
  • unpliablest,
  • in-curable,
  • un-disciplined,
  • un governable,
  • un-cooperative,
  • un-pliable,
  • most intransigent,
  • in curable.
  •obstinate (adjective)
  • Pig-headed,
  • inelastic,
  • bigoted,
  • uncompromising,
  • opinionative,
  • hidebound,
  • brass-bound,
  • contrary,
  • rigid,
  • bovine.
  •peevish (adjective)
  • most out-of-sorts,
  • most out of sorts,
  • more growling,
  • Fretting,
  • most cussed,
  • badtempered,
  • most whining,
  • waspiest,
  • more out-of-sorts,
  • more whining,
  • fault finding,
  • more caviling,
  • ill natured,
  • more out of sorts,
  • most grousing,
  • most fretting,
  • waspier,
  • bad tempered,
  • illnatured,
  • short tempered,
  • ogrer,
  • splenetic,
  • more grousing,
  • most splenetic,
  • most caviling,
  • ogrest,
  • more splenetic,
  • more fretting,
  • shorttempered,
  • more cussed,
  • most growling.
  •persistent (adjective)
  • in-terminable,
  • most bulldogged,
  • more bulldogged,
  • in terminable,
  • inter-minable,
  • never ending.
  •relentless (adjective)
  • un stoppable,
  • un-abated,
  • most unabated,
  • un-relieved,
  • un-broken,
  • unstoppable,
  • more unbroken,
  • un relieved,
  • most unstoppable,
  • non stop,
  • un broken,
  • un abated,
  • more unabated,
  • un-stoppable,
  • more unstoppable,
  • most unbroken.
  •stiff (adjective)
  • un-easiest,
  • more unrelaxed,
  • un gainliest,
  • un gainly,
  • un-natural,
  • unrelaxed,
  • un gainlier,
  • un easy,
  • most unrelaxed,
  • un-graceful,
  • un-easier,
  • un graceful,
  • un easiest,
  • un relaxed,
  • un easier,
  • un-gainly,
  • un-relaxed.
  •stubborn (adjective)
  • set ones ways,
  • in-subordinate,
  • set in ones ways,
  • set one's ways,
  • in subordinate,
  • un reasonable,
  • un-reasonable,
  • set ways,
  • set one ways,
  • set in ways,
  • set in one ways.
  •tenacious (adjective)
  • retentive,
  • unforgetful.
  •unbendable (adjective)
  • un bendable,
  • un-bendable.
  •uncompliant (adjective)
  • un compliant,
  • un-compliant.
  •untiring (adjective)
  • fireball,
  • hyper,
  • GOGO,
  • undeterred,
  • go-go.
  •unyielding (adjective)
  • un yielding,
  • more immalleable,
  • Immalleable,
  • un swayable,
  • most unswayable,
  • Unswayable,
  • un-yielding,
  • more unswayable,
  • un-movable,
  • more impliable,
  • un movable,
  • un-swayable,
  • most impliable,
  • most immalleable.

• n.

  •
  • dedicated,
  • ambitious,
  • motivated,
  • sedulous.
  •
  • perverse,
  • resist.
  •
  • continue.
  •bulldog (noun)
  • bulldog.

• Other synonyms:

  •
  • patient,
  • stiff-necked.
  •Other relevant words:
  • unconquerable,
  • dogmatic,
  • coherent,
  • conscientious,
  • intense,
  • slogging,
  • zealous,
  • affirmed,
  • faithful,
  • bold,
  • unflagging,
  • spirited,
  • immutable,
  • moody,
  • sullen,
  • unswerving,
  • decided,
  • contumacious,
  • indefatigable,
  • exorbitant,
  • forbidding,
  • stony,
  • clamant,
  • Gutty,
  • continuing,
  • rebellious,
  • nervy,
  • draining,
  • undiscouraged,
  • taxing,
  • Inconvincible,
  • fixed,
  • Hustling,
  • grim,
  • hardworking,
  • inalterable,
  • Plugging,
  • unshakeable,
  • fanatical,
  • gamey,
  • preoccupied,
  • energetic,
  • against the grain,
  • overzealous,
  • unalterable,
  • refractory,
  • plucky,
  • invincible,
  • unwavering,
  • settled,
  • clamorous,
  • pat,
  • loyal,
  • gamy,
  • unfaltering,
  • unwearied,
  • glowering,
  • unremitting,
  • purposive,
  • enduring,
  • unmoving,
  • Unrelaxing,
  • confirmed,
  • tireless,
  • Unintermitting,
  • unshaken,
  • definite,
  • spunky,
  • fanatic,
  • pressing,
  • unchanging,
  • extortionate,
  • persisting,
  • unregenerate,
  • assiduous,
  • red-blooded,
  • case-hardened,
  • hard-working,
  • inexorable,
  • vigorous,
  • stalwart,
  • game,
  • Undrooping,
  • dynamic,
  • uncooperative,
  • balky,
  • self-opinionated,
  • morose,
  • constant,
  • granitic,
  • sincere,
  • hard,
  • vital,
  • unfailing,
  • sour,
  • crying,
  • loud,
  • positive,
  • grasping,
  • sure,
  • intolerant,
  • steady,
  • rapt,
  • long,
  • devoted,
  • dark,
  • uninterrupted,
  • certain,
  • lively,
  • irreversible,
  • changeless,
  • froward,
  • demanding,
  • undeviating,
  • never-tiring,
  • sticking together,
  • attentive,
  • exigent,
  • enthusiastic,
  • stable,
  • unhesitant,
  • restive,
  • Begging,
  • industrious,
  • Weariless,
  • recollective,
  • wayward,
  • lasting,
  • exacting,
  • unsleeping,
  • unhesitating,
  • unchangeable,
  • instant,
  • bulletheaded,
  • eager,
  • unabating,
  • plodding,
  • intended,
  • glum,
  • deaf,
  • balking,
  • planned,
  • intentional,
  • deliberate,
  • Spiritful,
  • strenuous,
  • active,
  • permanent,
  • sleepless,
  • resolved,
  • saturnine,
  • solicitous,
  • mettlesome,
  • opinionated,
  • sulky,
  • unflinching.

Antonyms for Pertinacious:

• adj.

  • resolute
    tentative.
  • Other antonyms:
    submissive, hesitating, dutiful, fickle, placable, wavering, pliable, faithless, acquiescent, responsive, subservient, governable, temperate, undecided, willing, hesitant, manageable, slavish, flexible, amenable, pliant, faltering, gentle, complaisant, disloyal, complying, receptive, obedient, treacherous, vacillating, false, perfidious, reasonable, inconstant, accepting, irresolute, persuadable, yielding, agreeable, tractable, traitorous, teachable, compliant.

• Other antonyms:

  • n.
    regenerate.