rigorous
Translation
rigorous, strict, thorough
Examples
He underwent a rigorous training program.
He underwent a rigorous training programme.
The research required rigorous data analysis.
The research required rigorous data analysis.
Grammar Patterns
a ((rigorous)) (noun) a rigorous test
Similar Words
Synonyms: strict, thorough, meticulous; Antonyms: lax, lenient, careless
Etymology
From the noun 'rigor' plus the adjective-forming suffix '-ous'.
Memory Tips
A 'rigorous' process is 'full of rigor'. Remember that '-ous' often means 'full of'.