Polar vs Antithetical - What's the difference?

As a noun polar

is .

pertaining to antithesis, or opposition of words and sentiments; containing, or of the nature of, antithesis; contrasted.

(-)

of, relating to, measured from, or referred to a geographic pole (the North Pole or South Pole)

of an orbit that passes over, or near, one of these poles

(chemistry) having a dipole; ionic

(mathematics) of a coordinate system, specifying the location of a point in a plane by using a radius and an angle

(linguistics, of a question) Having but two possible answers, yes'' and ''no .

* ----

(en adjective)

Pertaining to antithesis, or opposition of words and sentiments; containing, or of the nature of, antithesis; contrasted.

His wrong-headed beliefs are antithetical to everything we stand for as a community.

This is precisely why insistence on relative truth is antithetical to critical thinking.

* antitheticality * antitheticalness