決疑者,詭辯家
Casuist \Cas"u*ist\, n. [L. casus fall, case; cf. F. casuiste. See {Casual}.] One who is skilled in, or given to, casuistry. The judment of any casuist or learned divine concerning the state of a man's soul, is not sufficient to give him confidence. --South. Casuist \Cas"u*ist\, v. i. To play the casuist. --Milton.
casuist n : someone whose reasoning is subtle and often specious [syn: {sophist}]