Origin of rigorous
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.
Turning the tide of the epidemic, he says, will require “rigorous contact, tracing, and quarantining.”
Therefore, we can at least infer that the people of Saint-Jean-des-Vignes did not have a rigorous eugenics program like Sparta.
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.
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
late 14c., from Old French rigorous (13c., Modern French rigoureux), from Medieval Latin rigorosus, from Latin rigor (see rigor). Related: Rigorously.