aberrance, aberrancy, aberration, abnormality, alteration, anomalousness, anomaly, antipathy, antithesis, branching off, breach of practice, change of direction, change of position, contrast, dedinatio, defiance of custom, departure, departure from usage, detour, difference, digressio, disaccord, disaccordance, disagreement, discongruity, discontinuity, discord, discrepancy, disharmony, disparity, dissidence, dissimilarity, dissonance, distinctness, divagation, divergence, diverseness, diversion, incongruity, inconsistency, inconsonance, inharmoniousness, irregularity, nonconformism, nonconformity, nonimitation, nonobservance, nonuniformity, straying, swerve, swerving, unconformity, unlikeness, unorthodoxy, variability, variance, variation
associated concepts: deviation doctrine, deviation from scope of employment, deviation from the norm
avoidance (evasion), defect, detour, difference, digression, discrepancy, disparity, diversification, error, exception (exclusion), incongruity, inconsistency, indirection (indirect action), inequality, irregularity, miscue, nonconformity, quirk (idiosyncrasy), sodomy, variance (exemption)
Burton's Legal Thesaurus. William C. Burton. 2006
department from the route that a carrier has expressly or impliedly agreed to follow. Deviation without reasonable justification (e.g. to save life or property) amounts to a repudiation of the contract by the carrier (See common carrier).
Collins dictionary of law. W. J. Stewart. 2001.