diametrical
adjective/ˌdaɪəˈmetrɪkl/
/ˌdaɪəˈmetrɪkl/
[usually before noun]- used to emphasize that people or things are completely different
- He's the diametrical opposite of his brother.
- relating to the diameter of something
Word Originmid 16th cent. (in sense (2)): from Greek diametrikos (from diametros ‘measuring across’: see diameter) + -al.
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diametrical