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Synonyms

inconsistency

American  
[in-kuhn-sis-tuhn-see] / ˌɪn kənˈsɪs tən si /
Also inconsistence

noun

  • inconsistencies
    plural
  1. the quality or condition of being inconsistent.

  2. an inconsistent thing, action, remark, etc.


inconsistency British  
/ ˌɪnkənˈsɪstənsɪ /

noun

  1. lack of consistency or agreement; incompatibility

  2. an inconsistent feature or quality

  3. logic

    1. the property of being inconsistent

    2. a self-contradictory proposition

"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

Other Word Forms

Noun Inflected Forms

Etymology

Origin of inconsistency

First recorded in 1640–50; in- 3 + consistency

Explanation

When there's inconsistency, things are not the same. An example of inconsistency in parenting might be when parents give different allowances to kids who are the same age. There's a lot of inconsistency in the world. Some restaurants will serve delicious food most of the time, but not all the time. Teachers in different classes will have different rules for what is expected. Another type of inconsistency is between ideas or propositions. For example, if you want to lose weight but cannot stop eating donuts, there is a major inconsistency between those two ideas. Anywhere you find things that are changing or varying, there is inconsistency.

Keep Reading on Vocabulary.com

Vocabulary lists containing inconsistency

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.

See Examples For:

Their selection inconsistency is mirrored in their form on the park too.

From BBC Aug. 9, 2026

He gave up six runs in 5⅓ innings, raising concerns again over his inconsistency.

From Los Angeles Times Jul. 21, 2026

The detective noted the inconsistency, which Bušić attributed to not sleeping for “four or five days.”

From Slate Jul. 7, 2026

But too much inconsistency has tempered once-sky-high expectations.

From MarketWatch May 31, 2026

Mrs. Ivy said, “There is a small scheduling inconsistency, Dr. Fox. No need to concern yourself.”

From "Louisiana's Way Home" by Kate DiCamillo

Jason Arday resigned from the University of Cambridge following allegations of plagiarism and inconsistencies in his back story.

From The Wall Street Journal Aug. 6, 2026

The senator knew there would likely be inconsistencies between Fauci’s memory and what he wrote at the time.

From Salon Aug. 1, 2026

Once clouds were included, the strange inconsistencies disappeared.

From Science Daily Jun. 28, 2026

California defendants could already challenge those amounts at bail reduction hearings, but the state’s high court judges said they sought to remedy the inconsistencies and protect the rights of low-income defendants.

From Los Angeles Times May 29, 2026

I’m interested in other people’s experiences and inconsistencies, and though I can’t explain, I remember and use them for my own benefit.

From "Little Women" by Louisa May Alcott

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