Simple Definition of inconsistency

from our Learner's Dictionary

inconsistency

noun

plural inconsistencies
1
: the quality or fact of being inconsistent: such as
a
: the quality or fact of not staying the same at different times
Police noticed inconsistency in his two statements.
Customers have been complaining about the inconsistency in the quality of service they have received.
The team's biggest problem has been inconsistency: it has played well at times, but at other times it has played very poorly.
b
: the quality or fact of having parts that disagree with each other
There is some inconsistency in her argument.
Careful editing of the entire text has eliminated inconsistencies of style.
2
: a difference or disagreement between two statements which means that both cannot be true
We noted a major inconsistency in his story.

Cite this Entry

“Inconsistency.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/inconsistency. Accessed 21 Jun. 2026.

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