rigorous
🇺🇸 /ˈrɪgɜrəs/
📖 Definitions
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adjective
Extremely thorough, exhaustive, or accurate; characterized by strict precision and attention to detail.; Strictly applied or adhered to; demanding exact conformity to a standard or rule.; Harsh, severe, or extreme, especially in reference to conditions or treatment.; In mathematics and logic, based on or conforming to strict standards of validity and correctness; logically sound.; Physically demanding or strenuous; requiring great effort or endurance.
🔗 Details
Word forms
Comparative: more rigorous
Superlative: most rigorous
Collocations
rigorous analysisrigorous testingrigorous standardsrigorous approachrigorous examinationrigorous training
Derivatives
rigorrigorouslyrigorousnessrigorismrigorist
Synonyms
strictthoroughexactingstringentdemandingmeticulous
Antonyms
lenientlaxcarelesssloppy
Commonly confused
vigorous
EN: 'Rigorous' means strict and thorough; 'vigorous' means energetic and forceful.
rigid
EN: 'Rigorous' implies thoroughness and high standards; 'rigid' implies inflexibility and inability to adapt.
Spelling tips
EN: Remember that even in British English where the noun is 'rigour', the adjective is always 'rigorous' (never 'rigourous').
💬 Examples
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The scientist conducted a rigorous analysis of the data before publishing her findings.
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The school enforced rigorous discipline policies that left little room for misbehavior.
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The explorers endured the rigorous winter climate of the Arctic region.
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The theorem was finally given a rigorous proof after decades of informal acceptance.
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The soldiers completed a rigorous training program that included daily ten-mile runs.