irregularity

/ɪˌɹɛ.ɡjʊˈlæ.ɹɪ.ti/

//ɪˌɹɛ.ɡjʊˈlæ.ɹɪ.ti// noun

By · According to Wiktionary data (CC BY-SA) ·

"irregularity" is a 12-letter English headword indexed on PlainSpell.

The verdict

“irregularity” has 16 generated spelling variants in the English index at frequency #48,830. The variants make it a useful spelling check.

#48,830
frequency rank, English
2,140
“I” headwords
16
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - An instance of being irregular.

Corpus desk

Index EN-irregularity · irregularity · English

irregularity · rank #48,830 · 16 variants · 1 confusable

  • FREQ-MID #48,830
  • LEN-MEGA 12 letters
  • VOW-6 6 vowels
  • CONFUS-LOW 1 pairs
  • VAR-HIGH 16 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH Irfan

Nearest frequency peer: Irfan (-1 rank slots)

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Rank peers near misspelling magnet “irregularity”

Same rarity band: useful when a typo lands on a peer headword

corpus weight

What this shows “irregularity” sits among these FrequencyWords peers; misspelling depth is tracked separately in the edit-distance chart.

Source FrequencyWords open word-frequency list As of September 3, 2026

Visual similarity to commonly confused words

How many letter changes separate each confused pair (Levenshtein distance, normalized).

irregularity vs irregularly
83% similar

Source: PlainSpell confusable corpus (Wiktionary, CC BY-SA).

Key facts for irregularity
PropertyValue
Headwordirregularity
LanguageEnglish
Part of speechNoun
IPA/ɪˌɹɛ.ɡjʊˈlæ.ɹɪ.ti/
Letters12
Frequency rank#48,830
Misspellings tracked16
Confusable pairs1
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “irregularity”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).irregularitylands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “Irfan” (#48,829), “Irv” (#48,831), “Issac” (#48,834). Among 2,140 “I” headwords, “irregularity” is #48,830. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 16 spelling variants around irregularity (IPA /ɪˌɹɛ.ɡjʊˈlæ.ɹɪ.ti/), anoun. Corpus frequency is #48,830 among 2,140 “I” headwords. Wiktionary lists 5 senses, so context still picks the gloss.

Our generated misspelling index lists 16 likely wrong-spelling variants for irregularity, with forms such as "iregularity", "irergularity", and "irreggularity". Each of these forms differs from the correct spelling by one small edit: a doubled letter, a dropped silent letter, or a substituted vowel. It also participates in 1 confusable-pair relationship, "irregularly", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From Middle French irrégularité, from Medieval Latin irregularitas. Morphologically irregular + -ity. The correct English form is irregularity, spelled I-R-R-E-G-U-L-A-R-I-T-Y.

Definition

  1. 1
    An instance of being irregular.
  2. 2
    The state or condition of being irregular, or the extent to which something is irregular.
  3. 3
    An object or event that is not regular or ordinary.
  4. 4
    A violation of rules.
  5. 5
    Irregular bowel movement (e.g. diarrhea or constipation).

Recorded use

Wiktionary examples

These source excerpts show how irregularity appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. A new track-recording vehicle has been developed for British Railways as part of the modernisation programme. It can locate and record the smallest irregularities in the track, and will be an aid to railway engineers in making better use of manpower and materials for track maintenance.
  2. an irregularity of surface

Etymology

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

Antonyms

regularity

This word in other languages

irregularidad(Español)irrégularité(Français)Unregelmäßigkeit(Deutsch)irregularidade(Português)

Common misspellings

Also misspelled as:

  • iregularity
  • irergularity
  • irreggularity
  • irregluarity
  • irregualrity
  • irregulairty
  • irregularitty
  • irregularityy
  • irregulariyt
  • irregularrity
  • irregulartiy
  • irregullarity
  • irregulraity
  • irreuglarity
  • irrgeularity
  • riregularity

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of irregularity - counted as single-character edits (an insertion, a deletion, or a substituted letter). The larger the bar, the easier the typo is to spot; one-edit slips are the ones that sneak past readers.

iregularity1irergularity2irreggularity1irregluarity2irregualrity2irregulairty2irregularitty1irregularityy1
Edit distance from "irregularity"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "irregularity"?
"irregularity" is spelled I-R-R-E-G-U-L-A-R-I-T-Y. The IPA pronunciation is /ɪˌɹɛ.ɡjʊˈlæ.ɹɪ.ti/.
What does "irregularity" mean?
As a noun, "irregularity" means: An instance of being irregular.
What words are commonly confused with "irregularity"?
"irregularity" is commonly confused with "irregularly". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "irregularity"?
The IPA (International Phonetic Alphabet) transcription for "irregularity" is /ɪˌɹɛ.ɡjʊˈlæ.ɹɪ.ti/. Click the speaker icon on the pronunciation badge above to hear it spoken aloud where audio is available.
What is the origin of the word "irregularity"?
From Middle French irrégularité, from Medieval Latin irregularitas. Morphologically irregular + -ity. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "irregularity", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 12 letters (nearest by frequency rank).

inaccurately#48,813magnetically#48,875glycoprotein#48,775marksmanship#48,885

Similar misspelling depth

Headwords with a similar count of attested misspellings (16 here; floor ≥5).

Kenilworth16 variantsmasterfully16 variantsMontmartre16 variantsreconfigure16 variants

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list