Thesaurus

rigorous

adjective

Synonyms and Antonyms of rigorous

  1. 1 given to exacting standards of discipline and self-restraint a rigorous football coach who pushes his players to their physical and mental limits Synonyms of rigorous austere, authoritarian, flinty, hard, harsh, heavy-handed, ramrod, rigid, severe, stern, strict, toughWords Related to rigorous demanding, exacting; uncharitable, unforgiving; adamant, adamantine, callous, hardened, hard-hearted, hard-line, immovable, implacable, inflexible, merciless, ossified, pitiless, relentless, rock-ribbed, stiff, unbending, uncompromising, unrelenting, unsparing, unyielding; dour, gruff; ascetic (also ascetical), monastic, monkish; browbeating, bullying; determined, firm, resolved, single-minded, steadfast, unflinching; dogged, intractable, obstinate, relentlessNear Antonyms of rigorous easy, easygoing, laid-back, undemanding; charitable, kind, merciful, mild, patient, soft, softhearted; accepting, compromising, yielding; responsive, willing; acquiescent, agreeable, amenable, complaisant, compliant, flexible, pliable, pliantAntonyms of rigorous clement, forbearing, gentle, indulgent, lax, lenient, tolerant

  2. 2 meeting the highest standard of accuracy a rigorous analysis of the data Synonyms of rigorous accurate, close, delicate, exact, fine, hairline, mathematical, pinpoint, refined, precise, spot-onWords Related to rigorous correct, right, strict, true; definite, definitive; nice, subtle; careful, fastidious, finical, finicky, meticulousNear Antonyms of rigorous approximate, round; false, incorrect, untrue, wrong; careless, loose; indefinite, unclear, vague; doubtful, dubious, questionable, unreliable, untrustworthyAntonyms of rigorous coarse, imprecise, inaccurate, inexact, rough

  3. 3 not allowing for any exceptions or loosening of standards a rigorous diet and exercise regimen Synonyms of rigorous brassbound, cast-iron, exacting, hard-line, inflexible, rigid, strict, stringent, uncompromisingWords Related to rigorous close, conscientious, exact, fussy, meticulous, painstaking, punctilious, scrupulous, undeviating; adamant, adamantine, determined, dogged, firm, relentless, resolved, single-minded, steadfast, stubborn, tenacious, unbending, unflinching; immovable, implacable, unappeasable, unrelenting, unsparing, unyielding; austere, demanding, flinty, grim, hard, hardened, hard-hearted, harsh, ironbound, severe, stern, toughNear Antonyms of rigorous acquiescent, compliant, compromising, pliable, pliant, relenting, yielding; easy, easygoing, gentle, indulgent, kindly, lenient, merciful, mild, pampering, soft, spoiling, tolerant; neglectful, negligent, remiss, slipshod, sloppy, slovenly, unfussyAntonyms of rigorous flexible, lax, loose, relaxed, slack

  4. 4 requiring considerable physical or mental effort studied for umpteen months for the rigorous exam Synonyms of rigorous arduous, Augean, backbreaking, challenging, demanding, difficult, effortful, exacting, formidable, grueling (or gruelling), heavy, hellacious, herculean, killer, laborious, moiling, murderous, pick-and-shovel, hard, rough, rugged, severe, stiff, strenuous, sweaty, tall, testing, toilsome, tough, uphillWords Related to rigorous abstract, abstruse, complex, complicated, elusive, hairy, insoluble, intricate, involved, knotty, opaque, problematic (also problematical), recondite, serious, spiny, stubborn, thorny, ticklish, tricky; bruising, burdensome, exhausting, labored, onerous, oppressive, stressful, taxing, tight, trying; annoying, bothersome, distressing, irksome, troublesome, vexatious; grievous, grim, strict, stringent; brutal, cruel, inhuman, painfulNear Antonyms of rigorous achievable, clear, doable, elementary, manageable, uncomplicated; comforting, gentle, painless, relaxed, smooth, soothing; accessible, friendly, idiotproof, user-friendlyAntonyms of rigorous cheap, easy, effortless, facile, light, mindless, simple, soft, undemanding

Synonym Discussion of rigorous

rigid, rigorous, strict, stringent mean extremely severe or stern. rigid implies uncompromising inflexibility.
    • rigid rules of conduct
rigorous implies the imposition of hardship and difficulty.
    • the rigorous training of recruits
strict emphasizes undeviating conformity to rules, standards, or requirements.
    • strict enforcement of the law
stringent suggests severe, tight restriction or limitation.
    • stringent standards of admission

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