rigorous

o·ver·rig·or·ous·ness, nounself-rig·or·ous, adjectivesem·i·rig·or·ous, adjectivesem·i·rig·or·ous·ly, adverbsem·i·rig·or·ous·ness, nounun·rig·or·ous, adjectiveun·rig·or·ous·ly, adverbun·rig·or·ous·ness, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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|DAILY BEAST
Turning the tide of the epidemic, he says, will require “rigorous contact, tracing, and quarantining.”
Blood Is Ebola’s Weapon and Weakness|Abby Haglage|October 26, 2014|DAILY BEAST
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|Elizabeth Picciuto|July 22, 2014|DAILY BEAST
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’|Andrew Romano|July 14, 2014|DAILY BEAST

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|DAILY BEAST
And for which had every Individual been hanged, few I imagine would think that Justice had been rigorous.
A General History of the Pyrates:|Daniel Defoe
They were, besides, made amenable to a most rigorous system of laws, the least infraction of which was punished with death.
The Works of Hubert Howe Bancroft, Volume 5|Hubert Howe Bancroft
These castes were kept apart by a rigorous series of religious taboos.
The New World of Islam|Lothrop Stoddard
But it was difficult to state intelligibly the grounds of this belief to that man of rigorous logic, if of infinite charity.
The Mirror of the Sea|Joseph Conrad
The luxury of them was new to him, yet not unpleasing after many years of rigorous self-denial and poverty.
Bunch Grass|Horace Annesley Vachell

British Dictionary definitions for rigorous

rigorous

/ (ˈrɪɡərəs) /

adjective

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

Derived forms of rigorous

rigorously, adverbrigorousness, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

rigorous

adjective

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Examples from the Web for rigorous

British Dictionary definitions for rigorous

adjective

Derived forms of rigorous