Definition of "archetypal"

In 1928 [Martin] Heidegger succeeded [Edmund] Husserl to take a chair at Freiburg and in his inaugural lecture made a pronouncement that earned him a reputation as an archetypal metaphysician with his claim that our awareness of people as a whole depends on our experience of dread in the face of nothingness.

2014 April 12, Michael Inwood, “Martin Heidegger: the philosopher who fell for Hitler [print version: Hitler's philosopher]”, in The Daily Telegraph (Review)‎, London, page R11