Rig"or*ist, n. [Cf. F. rigoriste.] One who is rigorous; -- sometimes
applied to an extreme Jansenist.
Rig"or*ous (?), a. [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.