Definition of irregularity in English:

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Pronunciation: /əˌreɡyəˈlerədē/

noun (plural irregularities)

1The state or quality of being irregular: there is evidence that fraud and irregularity continue on a large scale
More example sentences
  • Many projects have been listed and caught out, but they have not been involved in any irregularity or fraud.
  • He pressed his body up against hers in a more intimate manner and she heard his every breathing irregularity.
  • A council statement added: ‘One concerns a petty cash irregularity and the other concerns the use of council funds.’
asymmetry, nonuniformity, unevenness, crookedness, lopsidedness;
jaggedness, raggedness, indentation
roughness, bumpiness, unevenness;
inconsistency, unsteadiness, unevenness, fitfulness, patchiness, instability, variability, changeableness, fluctuation, unpredictability, unreliability
abnormality, unusualness, strangeness, oddness, singularity, anomaly, deviation, aberration, peculiarity, idiosyncrasy
1.1 (usually irregularities) A thing that is irregular in form or nature: irregularities of the heartbeat financial irregularities
More example sentences
  • He declined to go into detail about the nature of the irregularities or to name companies allegedly involved.
  • He denies all charges except those of financial irregularities.
  • Barnes said directors began noticing financial irregularities in September.


Middle English: from Old French irregularite, from late Latin irregularitas, from irregularis (see irregular).

Words that rhyme with irregularity

angularity, barbarity, bipolarity, charity, circularity, clarity, complementarity, familiarity, granularity, hilarity, insularity, jocularity, linearity, parity, particularity, peculiarity, polarity, popularity, regularity, secularity, similarity, singularity, solidarity, subsidiarity, unitarity, vernacularity, vulgarity

For editors and proofreaders

Syllabification: ir·reg·u·lar·i·ty

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