Index of English words, starting with "ri"

(1) - Rigorous (a.) Violent.
(2) - Rigorous (a.) Severe; intense; inclement; as, a rigorous winter.
(3) - Rigorous (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.