Meaning of the word "diametrically opposed" in English

What does "diametrically opposed" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

diametrically opposed

US /ˌdaɪ.əˈmɛt.rɪ.kəl.i əˈpoʊzd/
UK /ˌdaɪ.əˈmɛt.rɪ.kəl.i əˈpəʊzd/

Idiom

completely different; in direct opposition

Example:
Their political views are diametrically opposed.
The two theories are diametrically opposed to each other.