This page provides all possible meanings and translations of the word ipse dixit
Princeton's WordNetRate this definition:(0.00 / 0 votes)
ipse dixit, ipsedixitism(noun)
an unsupported dogmatic assertion
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Ipse dixit, also known as the bare assertion fallacy, is a term which is used to identify and describe a sort of arbitrary dogmatic statement which the speaker expects the listener to accept as valid.
Ipse dixit denies that an issue is debatable. In other words, that's just the way it is.
The fallacy of defending a proposition by barely asserting it as a fait accompli distorts the argument by opting out of it entirely: "The most basic way to distort an issue is to deny that it exists".