[in-kuh n-sis-tuh n-see]

noun, plural in·con·sist·en·cies for 2.

the quality or condition of being inconsistent.
an inconsistent thing, action, remark, etc.

Also in·con·sist·ence.

Origin of inconsistency

First recorded in 1640–50; in-3 + consistency Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for inconsistency


noun plural -cies

lack of consistency or agreement; incompatibility
an inconsistent feature or quality
  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

Word Origin and History for inconsistency

1640s, from in- (1) "not, opposite of" + consistency. Related: Inconsistencies.

Online Etymology Dictionary, © 2010 Douglas Harper