casuistic vs casuistry

casuistic is not a noun while casuistry is a noun.

Word	Noun	Adjective	Verb	Adverb
casuistic	No	Yes	No	No
casuistry	Yes	No	No	No

casuistic (noun)	casuistry (noun)
	moral philosophy based on the application of general ethical principles to resolve moral dilemmas
	argumentation that is specious or excessively subtle and intended to be misleading

casuistic (adjective)	casuistry (adjective)
of or relating to the use of ethical principles to resolve moral problems
of or relating to or practicing casuistry