illogical

adj

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

"illogical" is a 9-letter English headword indexed on PlainSpell.

The verdict

“illogical” has 11 generated spelling variants in the English index at frequency #25,788. The variants make it a useful spelling check.

#25,788
frequency rank, English
2,140
“I” headwords
11
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Contrary to logic; lacking sense or sound reasoning.

Corpus desk

Index EN-illogical · illogical · English

illogical · rank #25,788 · 11 variants · 0 confusables

  • FREQ-MID #25,788
  • LEN-LONG 9 letters
  • VOW-4 4 vowels
  • CONFUS-0 No pairs
  • VAR-MID 11 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH hospitalizati…

Nearest frequency peer: hospitalization (-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 “illogical”

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

corpus weight

What this shows “illogical” 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
Key facts for illogical
PropertyValue
Headwordillogical
LanguageEnglish
Part of speechAdjective
Letters9
Frequency rank#25,788
Misspellings tracked11
Confusable pairs0
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “illogical”

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

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

The axis is logarithmic, with each marked tick roughly ten times rarer than the last. Same rarity band neighbours include “hospitalization” (#25,787), “Ima” (#25,790), “Imma” (#25,791). Among 2,140 “I” headwords, “illogical” is #25,788. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 11 spelling variants around illogical, anadjective. Corpus frequency is #25,788 among 2,140 “I” headwords. Dominant gloss: "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

  1. 1
    Contrary to logic; lacking sense or sound reasoning.

Recorded use

Wiktionary examples

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

  1. I received an illogical reply and that left me standing there feeling confused.
  2. Your highly emotional reaction is most illogical.

Etymology

From il- + logical.

This word in other languages

ilógico(Español)illogique(Français)ilógico(Português)

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.

illgoical2illogcial2illoggical1illogiacl2illogicall1illogiccal1illogicla2illoigcal2
Edit distance from "illogical"

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 "illogical"?
"illogical" is spelled I-L-L-O-G-I-C-A-L.
What does "illogical" mean?
As an adjective, "illogical" means: Contrary to logic; lacking sense or sound reasoning.
What are common misspellings of "illogical"?
Common misspellings include "illgoical", "illogcial", "illoggical", "illogiacl", "illogicall". The correct spelling is "illogical".
What is the origin of the word "illogical"?
From il- + logical. 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 "illogical", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 9 letters (nearest by frequency rank).

indulgent#25,795Granville#25,777interlude#25,799genitalia#25,771

Similar misspelling depth

Headwords with a similar count of attested misspellings (11 here; floor ≥5).

fuselage11 variantsFlemish11 variantslonesome11 variantsCrockett11 variants

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

Source: FrequencyWords open word-frequency list