apodictic

Meanings

1. Incontrovertible; demonstrably true or certain.
2. Being a style of argument in which a person presents their reasoning as categorically true, even if it is not necessarily so.
3. Absolute and without explanation, as in a command from God like "Thou shalt not kill!"

Etymology

From the Latin apodīcticus (“proving clearly”, “demonstrative”), from the Ancient Greek ἀποδεικτικός (apodeiktikós, “affording proof”, “demonstrative”), from ἀποδείκνυμι (apodeíknumi, “to demonstrate”). In turn, from ἀπο- (apo-, “separate, without”), and δεικτικός (deiktikós, “capable of proof”).