apodeictic

About 0.02 uses per million words.

Meaning

1. adjective Affording proof; demonstrative.
2. adjective Incontrovertible; demonstrably true or certain.
3. adjective Of the characteristic feature of a proposition that is necessary (or impossible): perfectly certain (or inconceivable) or incontrovertibly true (or false); self-evident.

Similar words

true apodictic apodictive epidictical apodict apagogic apophantic apagogical apotelesmatical epiphanal

Often followed by

certainty and proof judgment law judgments syllogism or form