- characterized by rigor; rigidly severe or harsh, as people, rules, or discipline: rigorous laws.
- severely exact or accurate; precise: rigorous research.
- (of weather or climate) uncomfortably severe or harsh; extremely inclement.
- Logic, Mathematics. logically valid.
Origin of rigorous
SynonymsSee more synonyms for rigorous on Thesaurus.com
Examples from the Web for rigorous
But Olds did more than build Nurse-Family Partnership; he did the rigorous evaluation to prove it would work.Can the U.S. Government Go Moneyball?
Peter Orszag, Jim Nussle
December 23, 2014
Turning the tide of the epidemic, he says, will require “rigorous contact, tracing, and quarantining.”Blood Is Ebola’s Weapon and Weakness
October 26, 2014
Therefore, we can at least infer that the people of Saint-Jean-des-Vignes did not have a rigorous eugenics program like Sparta.Living With Disability in the Dark Ages
July 22, 2014
And that kind of rigorous attention to detail is not something you can normally do in television.Vampires without Glitter or Girl Problems: Inside Guillermo del Toro’s ‘The Strain’
July 14, 2014
The best performing middle schools place great emphasis on “future-focus”—on rigorous high-school curriculum.Why Middle School Should Be Abolished
David C. Banks
July 12, 2014
He accordingly sentenced him to six months' rigorous imprisonment.Lotus Buds
The rigorous metaphysician will please not begin to carp at our definition.
At Rome the rigorous mysteries of Mithra had paved the way for reform.The Oriental Religions in Roman Paganism
The most rigorous propriety was the order of the day, or rather of the evening.
In all his life Mr. Varga had never had to face so rigorous an ordeal.
- characterized by or proceeding from rigour; harsh, strict, or severerigorous discipline
- severely accurate; scrupulousrigorous book-keeping
- (esp of weather) extreme or harsh
- maths logic (of a proof) making the validity of the successive steps completely explicit
Word Origin and History for rigorous
late 14c., from Old French rigorous (13c., Modern French rigoureux), from Medieval Latin rigorosus, from Latin rigor (see rigor). Related: Rigorously.