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⇱ rigorous - WordReference.com Dictionary of English


rigorous

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UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˈrɪgərəs/US:USA pronunciation: IPA and respellingUSA pronunciation: IPA/ˈrɪgərəs/ ,USA pronunciation: respelling(rigər əs)


WordReference Random House Learner's Dictionary of American English © 2026
rig•or•ous /ˈrɪgərəs/USA pronunciation  adj. 
    1. of or relating to rigor:rigorous exercise; rigorous research.

WordReference Random House Unabridged Dictionary of American English © 2026
rig•or•ous  (rigər əs),USA pronunciation adj. 
  1. characterized by rigor;
    rigidly severe or harsh, as people, rules, or discipline:rigorous laws.
  2. severely exact or accurate;
    precise:rigorous research.
  3. (of weather or climate) uncomfortably severe or harsh;
    extremely inclement.
  4. Mathematics, Philosophy[Logic, Math.]logically valid.
  • Medieval Latin rigōrōsus. See rigor, -ous
  • Middle English 1350–1400
rigor•ous•ly, adv. 
rigor•ous•ness, n. 
    1. stern, austere, hard, inflexible, stiff, unyielding. See strict. 2. demanding, finical. 3. hard, bitter.
    1. flexible, soft. 2. inaccurate. 3. mild.

Collins Concise English Dictionary © HarperCollins Publishers::
rigorous /ˈrɪɡərəs/ adj
  1. characterized by or proceeding from rigour; harsh, strict, or severe: rigorous discipline
  2. severely accurate; scrupulous: rigorous book-keeping
  3. (esp of weather) extreme or harsh
  4. (of a proof) making the validity of the successive steps completely explicit
ˈrigorously adv
'rigorous' also found in these entries (note: many are not synonyms or translations):

🗣️Forum discussions with the word(s) "rigorous" in the title:

A rigorous treatment
arrive at a mathematically rigorous, fully predictive framework
intuitive and rigorous reasoning
meticulous and rigorous scholarship
no less rigorous
refrain from running, cycling and other rigorous exercise(s) in the park
rigid, strict, rigorous
rigorous
rigorous
rigorous
Rigorous / vigorous
rigorous activity
Rigorous application of his insights to analyses that neglected them has made vivid ...
rigorous <enmeshment>
Rigorous foundation?
Rigorous historical criticism
rigorous scholarship
rigorous vs. vigorous
She did it (through?) a more rigorous way than he.
she had held them to a rigorous standard
strict vs. rigorous
strict, rigorous, loyal
stringent vs rigorous
the issue remained < rigorous / dormant >

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