col·​or·​less | \ˈkə-lər-ləs \

Definition of colorless 

: lacking color: such as

a : pallid, blanched a colorless complexion

b : dull, uninteresting colorless prose

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Other Words from colorless

colorlessly adverb
colorlessness noun

Examples of colorless in a Sentence

since we can't decide what color to paint the doghouse, our latest home project remains colorless for the time being page after page of colorless prose without even one neat turn of phrase

Recent Examples on the Web

If bright and bold is your style, think about something more understated with a colorless choice. Jennifer Aldrich, Country Living, "Christmas Tree Shops Just Released Its Holiday Decor and We Want Everything," 13 Oct. 2018 The next day brought cold, colorless rain in New York. Brianna Wu, Marie Claire, "I Ran for Congress. I Lost. I'm Persisting. Quitting Is Not an Option In the Trump Era.," 9 Oct. 2018 As a result, any bacteria that carried a variant form of the enzyme that digested the protein would end up surrounded by a clear, colorless halo. John Timmer, Ars Technica, "Nobel awarded for using Darwin’s ideas to make antibodies and catalysts," 3 Oct. 2018 Called the invisible killer, carbon monoxide is a colorless, odorless gas created when fuels like gas, wood, charcoal, gas, or propane burn incompletely, according to the National Fire Protection Association. Caroline Picard, Good Housekeeping, "SAFETY ALERT: Your Carbon Monoxide Alarm Probably Just Expired This Year," 21 Sep. 2018 Carbon monoxide is odorless and colorless, depriving the heart, brain and other vital organs of oxygen. New York Times, "Deadly Convenience: Keyless Cars and Their Carbon Monoxide Toll," 13 May 2018 In addition to the eight people killed, hundreds were injured by the colorless, odorless nerve gas. Author: Stuart Biggs, Gearoid Reidy, Anchorage Daily News, "Japan executes cult leader and 6 others for deadly 1995 sarin attack," 6 July 2018 The dangers of formaldehyde have long been known Formaldehyde is a colorless gas that’s used to make building materials like particleboard, plywood, and fiberboard — so it’s found in our houses and furniture. Julia Belluz, Vox, "Formaldehyde causes cancer. The EPA doesn’t want to acknowledge it.," 6 July 2018 One end has a clear balm that adds colorless shine. Kathleen Hou, The Cut, "This Is the Best Highlighter of All Time," 2 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'colorless.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of colorless

14th century, in the meaning defined above

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Statistics for colorless

Last Updated

17 Nov 2018

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Time Traveler for colorless

The first known use of colorless was in the 14th century

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More Definitions for colorless



English Language Learners Definition of colorless

: lacking color

: dull or boring : not interesting


col·​or·​less | \ˈkə-lər-ləs \

Kids Definition of colorless

1 : having no color

3 : dull entry 1 sense 3 Her face had a colorless expression.

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Comments on colorless

What made you want to look up colorless? Please tell us where you read or heard it (including the quote, if possible).


by force of circumstances

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