casuist
/ˈkæʒuɪst/
noun
- A person who uses clever but false reasoning to answer moral questions or to justify questionable behavior.
- My uncle is such a casuist that he can argue that cheating is sometimes fair.
- Historians often describe the lawyer as a casuist who could make any crime seem justified.
- The politician was a skilled casuist, twisting facts to defend his actions.
Synonyms