RIGORISM
Etymology
Noun
rigorism (countable and uncountable, plural rigorisms)
strictness (in interpreting or enforcing a rule)
(Christianity, theology) In Roman Catholic moral theology, the doctrine that in a case of doubt between right and wrong one should take the safer course, i.e. the one in verbal accordance with the law.
Synonym: tutorism
Antonym: probabilism
Source: Wiktionary
Rig"or*ism, n.
1. Rigidity in principle or practice; strictness; -- opposed to
laxity.
2. Severity, as of style, or the like. Jefferson.
Source: Webster’s Unabridged Dictionary 1913 Edition