illogical
"illogical" is a 9-letter English headword indexed on PlainSpell.
The verdict
“illogical” is a moderately-common English word, ranked #25,788 in English word frequency and used as an adjective.
- #25,788
- frequency rank, English
- 9
- letters
- 11
- tracked misspellings
According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Contrary to logic; lacking sense or sound reasoning.
| Property | Value |
|---|---|
| Headword | illogical |
| Language | English |
| Part of speech | Adjective |
| Letters | 9 |
| Frequency rank | #25,788 |
| Misspellings tracked | 11 |
| Confusable pairs | 0 |
| Source | Wiktionary (kaikki.org) |
Where “illogical” sits in English frequency
Spelling & Dictionary Insight
The English entry for illogical is 9 letters long, classified as an adjective. Corpus data places it at rank #25,788 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. The dominant gloss from Wiktionary reads: "Contrary to logic; lacking sense or sound reasoning.".
Our generated misspelling index lists 11 likely wrong-spelling variants for illogical, with forms such as "illgoical", "illogcial", and "illoggical". 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. Our dataset records no confusable match here, since no other headword is close enough in sound or shape to pair with it.
Etymologically, the entry records: From il- + logical. The correct English form is illogical, spelled I-L-L-O-G-I-C-A-L.
Definition
- 1Contrary to logic; lacking sense or sound reasoning.
Etymology
From il- + logical.
This word in other languages
Common misspellings
Also misspelled as: illgoical,illogcial,illoggical,illogiacl,illogicall,illogiccal,illogicla,illoigcal,ilogical,ilolgical,lilogical
Misspelling Pattern Breakdown
How far each generated variant is from the correct spelling of illogical - 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.
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 “illogical”
The practical upshot for anyone who landed here from a spell-check.
- The one correct English spelling is I-L-L-O-G-I-C-A-L - every other letter order is a misspelling in standard orthography.
- Browse more English words and confusable pairs in the same reference. English words
Data Source
Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.