non·con·for·mi·ty /ˌnän-kən-'fȯr-mə-tē/ n pl -ties1: failure to conform to or comply with something (as contract requirements)acceptance of goods occurs when the buyer...will take or retain them in spite of their nonconformity — Uniform Commercial Code2: a particular aspect in which something is nonconformingcannot revoke an acceptance he made with knowledge of a nonconformity — J. J. White and R. S. Summers
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.
aberration, abnormality, abnormity, anomalousness, anomaly, apostasy, bizarreness, Bohemianism, change, contrast, defiance, departure, deviation, difference, disagreement, disconformity, disobedience, disparity, dispute, dissent, dissidence, dissimilarity, distinctness, divergence, diverseness, diversity, eccentricity, exception, exceptionality, heresy, heterodoxy, heterogeneity, idiosyncrasy, incongruity, inconsistency, independence, individuality, irregularity, lack of agreement, nonagreement, nonconcurrence, nonuniformity, objection, originality, otherness, peculiarity, protest, protestation, recusancy, rejection, separateness, separatism, singularity, strangeness, unconformity, unconventionality, uniqueness, unlikeness, unorthodoxness, unorthodoxy, variance, variation, variety, veto
breach, deviation, difference, disaccord, discrepancy, disparity, dissent (nonconcurrence), dissidence, exception (exclusion), incompatibility (inconsistency), incongruity, inconsistency, inequality, informality, irregularity, noncompliance (nonobservance), quirk (idiosyncrasy), schism
Burton's Legal Thesaurus. William C. Burton. 2006
n.An aspect of some object that does not conform to the prevailing standard for objects of that kind.
The Essential Law Dictionary. — Sphinx Publishing, An imprint of Sourcebooks, Inc. Amy Hackney Blackwell. 2008.