Rigorous

rig-uh-russ

/ˈrɪɡ.ər.əs/

Adjective

Meaning

Rigorous means extremely thorough, accurate, or strict.
It refers to actions, processes, or standards that require great effort, discipline, or precision.
Something described as rigorous involves careful attention to detail and adherence to strict rules or criteria.

Examples

The scientist conducted rigorous testing before confirming the results.
Students must follow a rigorous schedule to succeed in the training program.
The airport has implemented rigorous security procedures.
Maintaining rigorous quality standards is essential for the company’s reputation.

Synonyms & Antonyms

Synonyms	Antonyms
Strict Thorough Precise Exacting Meticulous Severe Harsh Demanding	Lenient Relaxed Easygoing Careless Inexact

Word Forms

Rigorous (adjective)
Rigorously (adverb)
Rigorousness (noun)
Rigor (root noun)

Origin / Etymology

The word rigorous comes from the Latin rigor, meaning “stiffness” or “strictness.” It evolved through Old French rigoreux before entering Middle English as rigorous, carrying the sense of severity or strict discipline.

Grammar Information

Used to describe processes, methods, tests, standards, rules, or discipline.
Typically follows the noun it modifies or appears after linking verbs.
Example: “The training is rigorous.”
Common collocations: rigorous training, rigorous testing, rigorous standards, rigorous analysis.

Translations

Hindi: कठोर, सख्त
Spanish: riguroso
French: rigoureux / rigoureuse
German: rigoros, streng
Chinese (Mandarin): 严格的 (yán gé de)
Arabic: صارم
Japanese: 厳格な (genkaku na)

Idioms & Phrases

rigorous standards
rigorous discipline
rigorous evaluation
rigorous process