Of or characteristic of the tradition of philosophy founded by Zeno of Elea and Parmenides and holding the belief that there is one indivisible and unchanging reality.
Designating or of an ancient Greek school of philosophy which held that true being is singular and unchanging and that plurality, change, and motion are illusory: Parmenides and Zeno were its best-known adherents.
Aristotle, in a passage already cited, Metaphysics, A5, speaks of Xenophanes as the first of the Eleatic unitarians, adding that his monotheism was reached through the contemplation of the oupavos.
Its foundation is often attributed to Xenophanes of Colophon, but, although there is much in his speculations which formed part of the later Eleatic doctrine, it is probably more correct to regard Parmenides as the founder of the school.
In these main contentions the Eleatic school achieved a real advance, and paved the way to the modern conception of metaphysics.