im·per·fec·tion | \ˌim-pər-ˈfek-shən \

Definition of imperfection 

: the quality or state of being imperfect also : fault, blemish

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Examples of imperfection in a Sentence

He detected several imperfections in the surface of the jewel. She tried to hide the imperfection in the cloth.

Recent Examples on the Web

Intel’s machine learning and modified facial recognition software also allow the drone to recognize a particular whale’s fluke print, a pattern of nicks and other imperfections in a tail fin that are as personal as a human’s fingerprint. Jeffrey Kluger, Time, "How Drones Are Helping Scientists Study and Protect Endangered Whales," 31 May 2018 No blemish, bruise, bump, pockmark, or any other imperfection is ignored. Dmitry Samarov, Chicago Reader, "Ivan Albright’s meticulous attention to the human body continues to be an inspiration to young artists," 18 May 2018 After eggs are washed in the processing facility, graders check the eggs for cracks or other outside imperfections. Emily Hopkins, Indianapolis Star, "This farm said it had a USDA inspector onsite daily. But people still got sick.," 7 May 2018 This brand new lightweight matte foundation comes in 30 shades, stays on for 16 hours and works to correct imperfections and nourish the skin. Jillian Ruffo,, "Bobbi Brown's Entire Site Is 25 Percent Off Right Now! Here's Everything You Need to Buy," 8 Apr. 2018 Hannau will play For Bunita Marcus, a 1985 work that explores similar territory; rigorous repetition gives way to subtle changes akin to the kind of imperfections Feldman loved in Persian rugs. Peter Margasak, Chicago Reader, "Two Chicago pianists perform a pair of rarely heard masterpieces by Morton Feldman," 12 July 2018 Tests showed a tensile strength of 120 GigaPascals, indicating the nanotubes were free of imperfections. John Timmer, Ars Technica, "Forget carbon fiber—we can now make carbon nanotube fibers," 15 May 2018 The imperfections are part of the charm; the everydayness is precisely the allure. Michael Klein,, "Where the Sixers' Ben Simmons likes to roll in his neighborhood," 6 June 2018 But the technology's accuracy and reliability at this point is much more modest than advertised, and those imperfections make law enforcement's use of it potentially sinister in a different way. Lily Hay Newman, WIRED, "Facial Recognition Tech Is Creepy When It Works—And Creepier When It Doesn’t," 9 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'imperfection.' 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 imperfection

14th century, in the meaning defined above

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Statistics for imperfection

Last Updated

16 Oct 2018

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Time Traveler for imperfection

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

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More Definitions for imperfection



English Language Learners Definition of imperfection

: a small flaw or bad part

: the state of being imperfect : lack of perfection


im·per·fec·tion | \ˌim-pər-ˈfek-shən \

Kids Definition of imperfection

1 : the quality or state of having faults or defects : lack of perfection

2 : a small flaw or fault

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Comments on imperfection

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


exaggeratedly or childishly emotional

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