English Reference

Word

rigorously

Phoneticsrig·or·ous·ly, stress on the first syllable

US/ˈɹɪɡɝəsɫi/

UK/ɹˈɪɡəɹəsli/

Definition

adv. to do something in a very careful and strict way. You use this when you want to show that you are following rules or standards very closely.

adv. in a manner that is extremely strict, thorough, or exacting. Often describes the application of rules, the conduct of research, or the enforcement of discipline.

Examples

“The scientists tested the new drug rigorously.”

“The school follows a rigorous schedule to ensure that all students meet the high standards required for graduation.”

“The committee rigorously examined every piece of evidence before reaching a final verdict, leaving no room for speculation or error in the legal process.”

Examples

simple

“The scientists tested the new drug rigorously.”

contextual

“The school follows a rigorous schedule to ensure that all students meet the high standards required for graduation.”

complex

“The committee rigorously examined every piece of evidence before reaching a final verdict, leaving no room for speculation or error in the legal process.”

Real-World Examples

“Some hope that the natural before-and-after experiment presented by the Australian ban could be an opportunity to test the effects of social media more rigorously.”
Smithsonian Magazine 17 Aug 2026
“However, psilocybin has not yet been rigorously shown to be an effective treatment for anorexia in humans.”
Smithsonian Magazine 11 Aug 2026
“That’s why a test score alone—even from the SAT, one of the most “rigorously developed tests”—can’t determine college readiness, Oswald says.”
Smithsonian Magazine 23 Jun 2026

Word family

ADJECTIVE

ADVERB

rigorously(C1)

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
Frequency
Occasional
Level
C1 · Advanced
Updated

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