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monotonize

British  
/ məˈnɒtəˌnaɪz /

verb

  1. (tr) to make monotonous

"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

Example Sentences

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If so, doesn't this monotonize the product?

From New York Times

How frightful those white-shuttered brick piles which monotonize the streets of Philadelphia!

From Project Gutenberg