imperfection

noun

im·​per·​fec·​tion ˌim-pər-ˈfek-shən How to pronounce imperfection (audio)
Synonyms of imperfectionnext
: the quality or state of being imperfect
also : fault, blemish
an imperfection in the jewel

Synonyms of imperfection

Relevance
See All Synonyms & Antonyms in Thesaurus

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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Turning the measured effect into a practical quantum-control tool will require researchers to understand and manage the remaining optical imperfections. — Rupendra Brahambhatt, Interesting Engineering, 30 Aug. 2026 The fluid, creamy formula offers medium, buildable coverage for imperfections that still leaves skin looking like skin. — Conçetta Ciarlo, Vogue, 28 Aug. 2026 Marie Claire notes the irony that even acceptance of imperfection can require deliberate application. — Ashley Lynch, Miami Herald, 28 Aug. 2026 Qubits are exceedingly susceptible to environmental noise and regulate imperfections. — Chuck Brooks, Forbes.com, 28 Aug. 2026 See All Example Sentences for imperfection

Word History

First Known Use

14th century, in the meaning defined above

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

Rhymes for imperfection

See All Rhymes for imperfection

Browse Nearby Words

imperfectible
imperfection
imperfective
See all Nearby Words

Cite this Entry

“Imperfection.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/imperfection. Accessed 1 Sep. 2026.

Copy Citation

Kids Definition

imperfection

noun
im·​per·​fec·​tion ˌim-pər-ˈfek-shən How to pronounce imperfection (audio)
1
: the quality or state of being imperfect
2
: flaw, fault
Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Popular in Grammar & Usage

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?

Why does English have so many silent letters?

7 Pairs of Commonly Confused Words
See More

Popular in Wordplay

See More

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

Even More Words That Sound Like Insults But Aren't

Even More Bird Names that Sound Like Insults (and Sometimes Are)

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
skateboard-dog-hat
Wordmaxxing Slang Quiz Give your vocabulary a glow up by getting sendy w...
See All