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diametrically

British  
/ ˌdaɪəˈmɛtrɪkəlɪ /

adverb

  1. completely; utterly (esp in the phrase diametrically opposed )

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Explanation

If one thing is the exact opposite of something else, they're diametrically opposed. Here, diametrically is used to mean "totally" or "completely." Diametrically is an unusual word — it's only used to modify the adjective opposed. When you describe two things that couldn't be more different from each other, you can say they're diametrically opposed. Is your brother a cheerful, optimistic person, while your sister is cranky and gloomy? Then they're diametrically opposed. This word comes from diameter, a line through a circle, in the sense that two points at either end of a diameter are directly opposite each other.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

And with composers Paola Prestini, Sarah Kirkland Snider, Jessica Meyer, mezzo-soprano and composer Alicia Hall Moran and pianist Gabriela Martinez, Loggins-Hull has created Diametrically Composed, a project commissioning works exploring art and motherhood.

From Washington Post • Jan. 22, 2022

Diametrically different are the religious retreats which take place at Pendle Hill under the leadership of Friends like Douglas Steere, Howard Brinton and Gilbert Kilpack.

From Time Magazine Archive

Diametrically opposing that view are self-styled "realists" who feel that the prospect of nuclear war is an ugly but inescapable fact of life.

From Time Magazine Archive

Diametrically opposed in their ideals, they have a common spirit.

From The Woman Who Toils Being the Experiences of Two Gentlewomen as Factory Girls by Vorst, Marie Van

Diametrically opposite were the feelings of Lunsford as he listened to the Prince’s declared preference.

From No Quarter! by Reid, Mayne

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