in·​con·​sis·​tent ˌin-kən-ˈsi-stənt How to pronounce inconsistent (audio)
: lacking consistency: such as
: not compatible with another fact or claim
inconsistent statements
: containing incompatible elements
an inconsistent argument
: incoherent or illogical in thought or actions : changeable
: not satisfiable by the same set of values for the unknowns
inconsistent equations
inconsistent inequalities
inconsistently adverb

Examples of inconsistent in a Sentence

Customers have been complaining about the inconsistent service they have received. The pain has been inconsistent. Her grades have been inconsistent this school year. Their descriptions of the accident were inconsistent. The results of the two experiments were inconsistent. The decision was inconsistent with the company's policy.
Recent Examples on the Web Healthcare data is notoriously inaccurate, incomplete, and inconsistent, especially when aggregated across the multiple provider organizations a typical patient sees over a major disease. William Mullane, USA TODAY, 12 May 2024 Yet even at the same establishment, messaging can be inconsistent. Anthony Palazzo, Fortune Europe, 10 May 2024 See all Example Sentences for inconsistent 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'inconsistent.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1620, in the meaning defined above

Time Traveler
The first known use of inconsistent was in 1620

Dictionary Entries Near inconsistent

Cite this Entry

“Inconsistent.” Dictionary, Merriam-Webster, Accessed 24 May. 2024.

Kids Definition


in·​con·​sis·​tent ˌin-kən-ˈsis-tənt How to pronounce inconsistent (audio)
: not being in agreement or harmony : incompatible
an explanation inconsistent with the facts
: not logical or regular in thought or actions : changeable
a very inconsistent person
inconsistently adverb

More from Merriam-Webster on inconsistent

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!