rigorousa.[F. rigoureux, LL. 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 rigorous execution of law; a rigorous definition or demonstration.()He shall be thrown down the Tarpeian Rock
With rigorous hands. (Shak.)We do not connect the scattered phenomena into their rigorous unity. (De Quincey.)2. Severe; intense; inclement; as, a rigorous winter.()3. Violent.(Spenser.)4. (Mathematics, Logic) Adhering scrupulously and exactly to accepted principles; hence, logically valid; as, a rigorous proof.()()()