apodeictical

CIDE DICTIONARY

apodeictical, a. [L. apodicticus, Gr. , fr. to point out, to show by argument; from + to show.].

 Self-evident; intuitively true; evident beyond contradiction.  Brougham. Sir Wm. Hamilton.  [1913 Webster]

ROGET THESAURUS

apodeictical

Demonstration

N demonstration, proof, rigorous proof, conclusiveness, apodeixis, apodixis, probation, comprobation, logic of facts, experimentum crucis, argument, rigorous establishment, absolute establishment, conviction, cogency, (persuasion), demonstrating, demonstrative, demonstrable, probative, unanswerable, conclusive, apodictic, apodeictic, apodeictical, irresistible, irrefutable, irrefragable, necessary, categorical, decisive, crucial, demonstrated, proven, unconfuted, unanswered, unrefuted, evident, deducible, consequential, consectary, inferential, following, convincing, cogent, persuasive (believable), of course, in consequence, consequently, as a matter of course, necessarily, of necessity, probatum est, there is nothing more to be said, quod est demonstrandum, Q, E, D, it must follow, exitus acta probat.