• (a.) Manifesting, exercising, or favoring rigor; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigorous execution of law; a rigorous definition or demonstration. • (a.) Severe; intense; inclement; as, a rigorous winter. • (a.) Violent.Rigorous: wo... Found on http://thinkexist.com/dictionary/meaning/rigorous/
Rig'or·ous adjective [ French rigoureux , Late Latin rigorosus . See Rigor .] 1. Manifesting, exercising, or favoring rigor; allowing no abatement or mitigation; scrupulously accurate; exact; strict; severe; relentless; as, a rigorous officer of justice; a rigor... Found on http://www.encyclo.co.uk/webster/R/82
strictadjective rigidly accurate; allowing no deviation from a standard; `rigorous application of the law`; `a strict vegetarian` Found on https://www.encyclo.co.uk/local/20974