adj · 4 senses · updated from the 2026-07-25 local source snapshot
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
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/ˈɹɪɡəɹəs/
US:Recorded audio is listed in the source snapshot.
rhymes with -ɪɡəɹəs
CMU ARPABET:R IH1 G ER0 AH0 S
Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
1
adj
Meaning 1
Showing, causing, or favoring rigour/rigor; scrupulously accurate or strict; thorough.
Definition source: English Wiktionary via Wiktextract
Examples
a rigorous officer of justice
a rigorous execution of law
a rigorous inspection
Meaning relationships
Synonyms: none provided
Antonyms: none provided
2
adj
Meaning 2
Severe; intense.
Definition source: English Wiktionary via Wiktextract
Examples
a rigorous winter
Meaning relationships
Synonyms: none provided
Antonyms: none provided
3
adjective satellite
Meaning 3
demanding strict attention to rules and procedures
Definition source: Princeton WordNet 3.0
Examples
rigorous discipline
tight security
stringent safety measures
Meaning relationships
Synonyms: stringent, tight
Antonyms: none provided
4
adjective satellite
Meaning 4
rigidly accurate; allowing no deviation from a standard
Definition source: Princeton WordNet 3.0
Examples
rigorous application of the law
a strict vegetarian
Meaning relationships
Synonyms: strict
Antonyms: none provided
History
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.
Across languages
Translations
51 source translations are retained for this English entry.
Bulgarian:
строг
(strog)
— showing, causing, or favoring rigour/rigor
Bulgarian:
взискателен
(vziskatelen)
— showing, causing, or favoring rigour/rigor
Catalan:
rigorós
— showing, causing, or favoring rigour/rigor
Chinese Mandarin:
嚴苛的 /严苛的
— showing, causing, or favoring rigour/rigor
Chinese Mandarin:
嚴謹的 /严谨的
— showing, causing, or favoring rigour/rigor
Dutch:
rigoureus
— showing, causing, or favoring rigour/rigor
Esperanto:
rigora
— showing, causing, or favoring rigour/rigor
Finnish:
ankara
— showing, causing, or favoring rigour/rigor
Finnish:
perinpohjainen
— showing, causing, or favoring rigour/rigor
Finnish:
perusteellinen
— showing, causing, or favoring rigour/rigor
French:
rigoureux
— showing, causing, or favoring rigour/rigor
Galician:
rigoroso
— showing, causing, or favoring rigour/rigor
German:
streng
— showing, causing, or favoring rigour/rigor
German:
rigoros
— showing, causing, or favoring rigour/rigor
Latin:
rigorosus
— showing, causing, or favoring rigour/rigor
Malayalam:
കർക്കശ
(kaṟkkaśa)
— showing, causing, or favoring rigour/rigor
Norwegian Bokmål:
rigorøs
— showing, causing, or favoring rigour/rigor
Norwegian Nynorsk:
rigorøs
— showing, causing, or favoring rigour/rigor
Portuguese:
rigoroso
— showing, causing, or favoring rigour/rigor
Romanian:
riguros
— showing, causing, or favoring rigour/rigor
Russian:
стро́гий
(strógij)
— showing, causing, or favoring rigour/rigor
Russian:
то́чный
(tóčnyj)
— showing, causing, or favoring rigour/rigor
Russian:
скрупулёзный
(skrupuljóznyj)
— showing, causing, or favoring rigour/rigor
Spanish:
riguroso
— showing, causing, or favoring rigour/rigor
Spanish:
rigoroso
— showing, causing, or favoring rigour/rigor
Turkish:
dakik
— showing, causing, or favoring rigour/rigor
Turkish:
dikkatli
— showing, causing, or favoring rigour/rigor
Turkish:
özenli
— showing, causing, or favoring rigour/rigor
Turkish:
sıkı
— showing, causing, or favoring rigour/rigor
Turkish:
titiz
— showing, causing, or favoring rigour/rigor
Ukrainian:
суворий
(suvoryj)
— showing, causing, or favoring rigour/rigor
Ukrainian:
жорсткий
(žorstkyj)
— showing, causing, or favoring rigour/rigor