rigorous
/ˈɹɪɡəɹəs/ adjective
Forms rigourous
- adjective Showing, causing, or favoring rigour/rigor; scrupulously accurate or strict; thorough.
- adjective Severe; intense. “a rigorous winter”
Synonyms
Antonyms
Etymology
Inherited from Middle English rigorous, from Middle French and Anglo-Norman rigoreus, derived from Late Latin rigōrōsus (stiff, rigid; inflexible). By surface analysis, rigor + -ous.
Webster’s 1913
- adjective Manifesting, exercising, or favoring rigor; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration.
- adjective Severe; intense; inclement; as, a rigorous winter.
Etymology [F. rigoureux, LL. rigorosus. See Rigor.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “rigorous”, CC BY-SA 4.0. Details