The Collaborative International Dictionary
Apodeictic \Ap"o*deic"tic\, Apodictic \Ap`o*dic"tic\,
Apodeictical \Ap`o*deic"tic*al\, Apodictical \Ap`o*dic"tic*al\,
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.
Wiktionary
a. (context archaic English) apodictic; being clearly demonstrable; certain.
Usage examples of "apodictical".
I shall merely assert that the words you said, and the way you said them, make it apodictical that you knew the contents of that particular box of candy before Miss Mitchell removed the lid.
That I, who think, can be considered in thinking as subject only, and as something not simply inherent in the thinking, as predicate, is an apodictical and even identical proposition.
This can only be done in two ways, either by proving one's own proposition apodictically, or, if that does not succeed, by trying to discover the causes of that failure, which, if they lie in the necessary limits of our reason, must force every opponent to submit to exactly the same law of renunciation with reference to any claims to dogmatic assertion.
I also propose in this preface my own view of metaphysics, which has so many analogies with the Copernican hypothesis, as an hypothesis only, though, in the Critique itself, it is proved by means of our representations of space and time, and the elementary concepts of the understanding, not hypothetically, but apodictically.