irreducible
Definition, pronunciation, etymology, and usage for the English word. Free spelling reference powered by Wiktionary.
Detailed reference entry for the English word "irreducible", 11-letters, with pronunciation in International Phonetic Alphabet notation, etymology traced through Germanic and Romance roots where applicable, common misspelling variants catalogued from Wiktionary, and usage frequency ranked against an open word-frequency list covering the top 100,000 English words. PlainSpell covers English, Spanish, Portuguese, French, and German spelling with confusable-pair detection that highlights visually and phonetically similar words. This entry for "irreducible" includes synonyms, antonyms, homophones, and cross-language translation pointers sourced from Wiktionary via the kaikki.org extract. Whether you are verifying the correct spelling of "irreducible" for academic writing, checking homophone confusion, or exploring etymological origins, this page provides a citation-backed, free reference that requires no sign-up.
The verdict
“irreducible” is a moderately-common English word, ranked #42,213 in English word frequency and used as an adjective.
- #42,213
- frequency rank, English
- 11
- letters
- 15
- tracked misspellings
Dominant Wiktionary sense: Not able to be reduced or lessened.
Compare similar words
See how irreducible compares against similar English words.
Browse all word comparisons →| Property | Value |
|---|---|
| Headword | irreducible |
| Language | English |
| Part of speech | Adjective |
| IPA | /ˌɪɹɪˈdjuːsɪbəl/ |
| Letters | 11 |
| Frequency rank | #42,213 |
| Misspellings tracked | 15 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “irreducible” sits in English frequency
Spelling & Dictionary Insight
The English entry for irreducible is 11 letters long, classified as an adjective, and transcribed in the International Phonetic Alphabet as /ˌɪɹɪˈdjuːsɪbəl/. Corpus data places it at rank #42,213 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 9 distinct senses for this headword, so context determines which meaning a reader should apply.
Our generated misspelling index lists 15 likely wrong-spelling variants for irreducible, with forms such as "ireducible", "irerducible", and "irrdeucible". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. It is not paired with a close-neighbour confusable in our dataset, which tends to mean the word is visually distinctive enough to stand on its own.
Etymologically, the entry records: From ir- + reducible. Root origin matters for spelling because borrowed morphemes (Greek, Latin, Old French, Old English) carry their source-language orthographic conventions into modern English, which is why historical etymology is often the cleanest predictor of whether a cluster like "-ough", "-eau", or "-tion" will appear. For readers arriving here from a spelling check, the authoritative guidance is: the correct English form is irreducible, spelled I-R-R-E-D-U-C-I-B-L-E, and any other sequence of those letters, regardless of how natural it feels, is a misspelling in standard orthography.
Definition
- 1Not able to be reduced or lessened.
- 2Not able to be brought to a simpler or reduced form.
- 3Unable to be factorized into polynomials of lower degree, as (x² + 1).
- 4Whose numerator and denominator share no common factor greater than 1.
- 5Unable to be factored into smaller integers; prime.
- 6Whose only divisors are units and associates.
- 7Inexpressible as the union of two proper algebraic subvarieties.
- 8Not containing a sphere of codimension 1 that is not the boundary of a ball.
- 9Impossible to divide further into representations of lower dimension by means of any similarity transformation.
Etymology
From ir- + reducible.
Antonyms
This word in other languages
Common misspellings
Also misspelled as: ireducible,irerducible,irrdeucible,irredcuible,irredducible,irreducable,irreducbile,irreduccible,irreducibble,irreducibel,irreduciblle,irreducilbe,irreduicble,irreudcible,rireducible
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of irreducible — measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.
Edit distance from "irreducible"
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
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Using “irreducible”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is I-R-R-E-D-U-C-I-B-L-E — every other letter order is a misspelling in standard orthography.
- Say it as /ˌɪɹɪˈdjuːsɪbəl/ (IPA); tap the speaker on the pronunciation badge to hear it where audio exists.
- Browse more English words and confusable pairs in the same reference. English words
Nearby English words
Other entries that begin with the letter I in our English index: