Diametrically opposed is a phrase that has been in use since at least the mid-1600s, and is still is common use today. We will examine the meaning of the term diametrically opposed, where it came from and some examples of its use in sentences.
The phrase diametrically opposed means to be completely and directly in opposition to something. The reference is to the two opposing points on either end of a diameter line drawn across a circle. The word diametrically is derived from the word diametrical, which is the adjective form of the word diameter. The word diameter is derived from the Greek word diametros, which means measuring across or the diagonal of a circle. Though the word diametrically may be used in reference to the diameter of an object or theoretical figure, it is most often used in the phrase diametrically opposed. The noun form is expressed as in diametrical opposition.
But you have to wonder, again, how people can claim to worship the same Lord, can read the same scriptures and then can arrive at such diametrically opposed positions. (The Lexington Herald-Leader)
This is diametrically opposed to the Chinese position of bilateral settlement with the individual Asean member concerned, i.e., the Philippines for one. (The Manila Times)
But the judge ruled for the village, saying that as long as local rules aren’t “diametrically opposed” to the state’s rules, it was OK to make Scenic Pit comply with both. (The Milwaukee Journal Sentinel)
Of course they come from diametrically opposed political standpoints – one for the Union, the other for an united Ireland – but should that mean they can never agree on anything? (The Belfast Telegram)