rigorous

[ rig-er-uhs ]
/ ˈrɪg ər əs /

adjective

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.

QUIZZES

WHO SAID IT: A QUIZ ON PRESIDENTIAL WIT AND WISDOM

Think you know your presidents? Take this quiz and see if you can match the style, wit, and ideology of these memorable lines to the right POTUS.
Question 1 of 9
“I do believe that the buck stops here, that I cannot rely upon public opinion polls to tell me what is right. I do believe that right makes might and that if I am wrong, 10 angels swearing I was right would make no difference.”

Origin of rigorous

First recorded in 1350–1400; Middle English word from Medieval Latin word rigōrōsus. See rigor, -ous

synonym study for rigorous

1. See strict.

OTHER WORDS FROM rigorous

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for rigorous

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