Thesaurus
rigorous
Synonyms and Antonyms of rigorous
1
given to exacting standards of discipline and self-restraint
adamant, adamantine, callous, hardened, hard-hearted, hard-line, immovable, implacable, inflexible, merciless, ossified, pitiless, relentless, rock-ribbed, stiff, unbending, uncompromising, unrelenting, unsparing, unyielding
ascetic (also ascetical), monastic, monkish
determined, firm, resolved, single-minded, steadfast, unflinching
2
meeting the highest standard of accuracy
3
not allowing for any exceptions or loosening of standards
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, tough
4
requiring considerable physical or mental effort
arduous, Augean, backbreaking, challenging, demanding, difficult, effortful, exacting, formidable, grueling (or gruelling), hard, heavy, hellacious, herculean, killer, laborious, moiling, murderous, pick-and-shovel, rough, rugged, severe, stiff, strenuous, sweaty, tall, testing, toilsome, tough, uphill
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
cheap, easy, effortless, facile, light, mindless, simple, soft, undemanding
Synonym Discussion of rigorous
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- rigid rules of conduct
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- the rigorous training of recruits
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- strict enforcement of the law
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- stringent standards of admission
Learn More about rigorous
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Dictionary: Definition of rigorous Spanish Central: Translation of rigorous Nglish: Translation of rigorous for Spanish speakers Britannica English: Translation of rigorous for Arabic speakers
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