Synonyms for Stick-to-itiveness:

• n.

  •durability (noun)
  • hard as nails,
  • imperishabilities,
  • backbone,
  • guts,
  • Durableness,
  • persistence,
  • endurance,
  • gutsiness,
  • imperishability,
  • moxie,
  • intestinal fortitude,
  • starch,
  • constancy,
  • stamina,
  • grit,
  • heart,
  • staying power,
  • permanence,
  • lastingness.
  •fortitude (noun)
  • spunk,
  • pith,
  • hardihood,
  • resoluteness,
  • resolution,
  • firmness,
  • mettle,
  • stomach,
  • nerve,
  • valiancy,
  • patience,
  • courageousness,
  • courage,
  • pluck,
  • intrepidity,
  • spine,
  • spirit,
  • bravery,
  • stoutheartedness,
  • dauntlessness,
  • determination,
  • Braveness,
  • valor,
  • boldness.
  •perseverance (noun)
  • Prolonging,
  • doggedness,
  • steadfastness,
  • cool,
  • purposefulness,
  • immovability,
  • pursuance,
  • immovabilities,
  • continuance,
  • indefatigability,
  • sedulity,
  • sedulities,
  • pertinacity,
  • dedication,
  • drive.
  •tenacity (noun)
  • inflexibility,
  • chutzpah,
  • obstinacy,
  • obduracy,
  • application,
  • clock,
  • staunchness,
  • guttiness,
  • willfulness,
  • strength of purpose,
  • resolve,
  • intransigence.
  •zeal (noun)
  • enterprise,
  • bustle,
  • inclination,
  • zest,
  • yen,
  • devotion,
  • passion,
  • ardor,
  • gusto,
  • readiness,
  • verve,
  • alacrity,
  • fanaticism,
  • eagerness,
  • intensity,
  • mania,
  • vehemence,
  • push,
  • fire,
  • initiative,
  • fierceness,
  • earnestness,
  • keenness,
  • warmth,
  • sincerity,
  • fervor,
  • hustle,
  • urgency,
  • dispatch.

• Other synonyms:

  •assiduity
  • diligence.

Antonyms for Stick-to-itiveness:

• n.

  • durability
    impermanency, unreliability, fear, cowardice, weakness, poorness.
  • fortitude
    irresolution, lethargy, helplessness, apathy, timidity, laziness.
  • perseverance
    indifference, indolence, idleness.
  • tenacity
    question, slackness, indecision.
  • zeal
    discouragement, dullness, inactivity, disinterest, coolness, unenthusiasm, insincerity, neglect.
  • Other antonyms:
    hesitation, indisposition, unwillingness, indecisiveness, reluctance, indetermination, aversion, incertitude, vacillation, irresoluteness, doubt, disinclination, uncertainty.