I. -gərə̇st noun
( -s )
Etymology: French rigoriste, from Latin rigor + French -iste -ist
1. : one who is strict in adherence to or enforcement of rules, standards, laws, or principles
2. : one who professes rigorism
II. adjective
or rig·or·is·tic |rigə|ristik
1. : rigid in principles or actions : strict
2. : of or relating to the doctrine of rigorism