[ kazh-oo-ist ]
/ ˈkæʒ u ɪst /


an oversubtle or disingenuous reasoner, especially in questions of morality.
a person who studies and resolves moral problems of judgment or conduct arising in specific situations.


Discover The Influence Of Portuguese On English Via This Quiz!
We’ve gathered some interesting words donated to English from Portuguese … as well as some that just don’t translate at all. Do you know what they mean?
Question 1 of 11
Which of the following bird names traces its immediate origin to Portuguese?

Origin of casuist

1600–10; < Spanish casuista < Latin cāsu(s) case1 + -ista -ist Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for casuist

British Dictionary definitions for casuist

/ (ˈkæzjʊɪst) /


a person, esp a theologian, who attempts to resolve moral dilemmas by the application of general rules and the careful distinction of special cases
a person who is oversubtle in his or her analysis of fine distinctions; sophist

Derived forms of casuist

casuistic or casuistical, adjectivecasuistically, adverb

Word Origin for casuist

C17: from French casuiste, from Spanish casuista, from Latin cāsus case 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012