9 Grammatical Pitfalls


[rig-er-uh s] /ˈrɪg ər əs/
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
1350-1400; Middle English < Medieval Latin rigōrōsus. See rigor, -ous
Related forms
rigorously, adverb
rigorousness, noun
overrigorous, adjective
overrigorously, adverb
overrigorousness, noun
self-rigorous, adjective
semirigorous, adjective
semirigorously, adverb
semirigorousness, noun
unrigorous, adjective
unrigorously, adverb
unrigorousness, noun
1. stern, austere, hard, inflexible, stiff, unyielding. See strict. 2. demanding, finical. 3. hard, bitter.
1. flexible, soft. 2. inaccurate. 3. mild. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for rigorously
  • Decisions made at the top are carried out rigorously to the lowest level.
  • The elements of the word are related to each other in a specific way and follow each other in a rigorously determined sequence.
  • Every day his arguments became more extreme, more rigorously exact, and more distressing to his master.
  • We certainly need teachers who are both highly skilled and who can think rigorously beyond the confines of their own discipline.
  • The mission of the community college is not to rigorously ignore cutting edge research.
  • The key is to press them, gently at first, then more rigorously.
  • But the wildness of the setting and the demands of the terrain rigorously test your stamina and technique.
  • In my hometown, families spend good money to filter water that's rigorously tested each day.
  • Fastidiously gathered, rigorously sorted, they can reveal emergent meanings.
  • The trouble is that regulations are not being enforced rigorously.
British Dictionary definitions for rigorously


characterized by or proceeding from rigour; harsh, strict, or severe: rigorous discipline
severely accurate; scrupulous: rigorous book-keeping
(esp of weather) extreme or harsh
(maths, logic) (of a proof) making the validity of the successive steps completely explicit
Derived Forms
rigorously, adverb
rigorousness, 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
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Word Origin and History for rigorously



late 14c., from Old French rigorous (13c., Modern French rigoureux), from Medieval Latin rigorosus, from Latin rigor (see rigor). Related: Rigorously.

Online Etymology Dictionary, © 2010 Douglas Harper
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