Standard Lemma guide

irregularity

noun · 9 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: /ɪˌɹɛ.ɡjʊˈlæ.ɹɪ.ti/ without the Mary–marry–merry merger
  • /ɪˌɹɛ.ɡjəˈlɛɹ.ɪ.ti/ General American, Mary–marry–merry merger
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: IH2 R EH2 G Y AH0 L EH1 R AH0 T IY0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

An instance of being irregular.

Definition source: English Wiktionary via Wiktextract

Usage: countable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

The state or condition of being irregular, or the extent to which something is irregular.

Definition source: English Wiktionary via Wiktextract

Usage: uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

An object or event that is not regular or ordinary.

Definition source: English Wiktionary via Wiktextract

Usage: countable

Examples

  • an irregularity of surface

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

A violation of rules.

Definition source: English Wiktionary via Wiktextract

Usage: countable

Examples

  • An investigation of the irregularities in the company's accounts uncovered a large-scale fraud.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

noun

Meaning 5

Irregular bowel movement (e.g. diarrhea or constipation).

Definition source: English Wiktionary via Wiktextract

Usage: countable, euphemistic, uncountable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

behavior that breaches the rule or etiquette or custom or morality

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: abnormality

Antonyms: none provided

Broader terms: misbehavior, misbehaviour, misdeed

Narrower terms: deviation, deviance

7

noun

Meaning 7

not characterized by a fixed principle or rate; at irregular intervals

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: unregularity

Antonyms: regularity

Broader terms: quality

Narrower terms: inhomogeneity, fitfulness, jerkiness, intermittence, intermittency, fluctuation, wavering, randomness, haphazardness, stochasticity, noise, unevenness, variability, unsteadiness

8

noun

Meaning 8

an irregular asymmetry in shape; an irregular spatial pattern

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: geometrical irregularity

Antonyms: none provided

Broader terms: asymmetry, dissymmetry, imbalance

9

noun

Meaning 9

irregular and infrequent or difficult evacuation of the bowels; can be a symptom of intestinal obstruction or diverticulitis

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: constipation

Antonyms: none provided

Broader terms: symptom

Narrower terms: dyschezia, fecal impaction, obstipation

History

Etymology

From Middle French irrégularité, from Medieval Latin irregularitas. Morphologically irregular + -ity.

Across languages

Translations

71 source translations are retained for this English entry.

  • Catalan: irregularitat — instance being irregular
  • Czech: nepravidelnost — instance being irregular
  • French: irrégularité — instance being irregular
  • Galician: irregularidade — instance being irregular
  • German: Unregelmäßigkeit — instance being irregular
  • Ancient Greek: ἀνωμαλία (anōmalía) — instance being irregular
  • Hindi: अनियमितता (aniyamittā) — instance being irregular
  • Hungarian: rendellenesség — instance being irregular
  • Irish: neamhrialtacht — instance being irregular
  • Irish: mírialtacht — instance being irregular
  • Italian: irregolarità — instance being irregular
  • Japanese: 不規則 (fukisoku) — instance being irregular
  • Japanese: 不規則性 (fukisokusei) — instance being irregular
  • Korean: 불규칙 (bulgyuchik) — instance being irregular
  • Latin: irregularitas — instance being irregular
  • Marathi: अनियमितता (aniyamitatā) — instance being irregular
  • Polish: nieregularność — instance being irregular
  • Portuguese: irregularidade — instance being irregular
  • Romanian: iregularitate — instance being irregular
  • Romanian: neregularitate — instance being irregular
  • Russian: непра́вильность (neprávilʹnostʹ) — instance being irregular
  • Spanish: irregularidad — instance being irregular
  • Tamil: அக்கிரமம் (akkiramam) — instance being irregular
  • Catalan: irregularitat — state or condition of being irregular
  • French: irrégularité — state or condition of being irregular
  • Galician: irregularidade — state or condition of being irregular
  • German: Unregelmäßigkeit — state or condition of being irregular
  • Hindi: अनियमितता (aniyamittā) — state or condition of being irregular
  • Irish: neamhrialtacht — state or condition of being irregular
  • Irish: mírialtacht — state or condition of being irregular
  • Italian: anomalia — state or condition of being irregular
  • Japanese: 不規則 (fukisoku) — state or condition of being irregular
  • Japanese: 不同 (fudō) — state or condition of being irregular
  • Japanese: 不揃い (fuzoroi) — state or condition of being irregular
  • Marathi: अनियमितता (aniyamitatā) — state or condition of being irregular
  • Polish: nieregularność — state or condition of being irregular
  • Portuguese: irregularidade — state or condition of being irregular
  • Romanian: iregularitate — state or condition of being irregular
  • Romanian: neregularitate — state or condition of being irregular
  • Russian: нерегуля́рность (nereguljárnostʹ) — state or condition of being irregular
  • Spanish: irregularidad — state or condition of being irregular
  • Catalan: irregularitat — object or event that is not regular
  • French: irrégularité — object or event that is not regular
  • Galician: irregularidade — object or event that is not regular
  • German: Unebenheit — object or event that is not regular
  • Hindi: अनियमित (aniymit) — object or event that is not regular
  • Hungarian: egyenetlenség — object or event that is not regular
  • Italian: anomalia — object or event that is not regular
  • Polish: anomalia — object or event that is not regular
  • Polish: nieregularność — object or event that is not regular
  • Portuguese: irregularidade — object or event that is not regular
  • Romanian: iregularitate — object or event that is not regular
  • Russian: неро́вность (neróvnostʹ) — object or event that is not regular
  • Russian: неравноме́рность (neravnomérnostʹ) — object or event that is not regular
  • Spanish: irregularidad — object or event that is not regular
  • Bulgarian: нередност (nerednost) — violation of rules
  • French: irrégularité — violation of rules
  • Galician: irregularidade — violation of rules
  • German: Unvorschriftsmäßigkeit — violation of rules
  • German: Ungesetzlichkeit — violation of rules
  • Hindi: अनियमितता (aniymittā) — violation of rules
  • Hungarian: szabálytalanság — violation of rules
  • Italian: irregolarità — violation of rules
  • Japanese: 反則 (hansoku) — violation of rules
  • Marathi: अनियमितता (aniyamitatā) — violation of rules
  • Polish: naruszenie — violation of rules
  • Portuguese: irregularidade — violation of rules
  • Romanian: violare de regulament — violation of rules
  • Russian: наруше́ние пра́вил (narušénije právil) — violation of rules
  • Russian: незако́нность (nezakónnostʹ) — violation of rules
  • Swedish: oegentlighet — violation of rules