unreasonable

/ʌnˈɹiːz.(ə)nə.bl̩/

//ʌnˈɹiːz.(ə)nə.bl̩// adj

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

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

The verdict

“unreasonable” has 18 generated spelling variants in the English index at frequency #10,470. The variants make it a useful spelling check.

#10,470
frequency rank, English
1,433
“U” headwords
18
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Without the ability to reason; unreasoning.

Corpus desk

Index EN-unreasonable · unreasonable · English

unreasonable · rank #10,470 · 18 variants · 1 confusable

  • FREQ-MID #10,470
  • LEN-MEGA 12 letters
  • VOW-6 6 vowels
  • CONFUS-LOW 1 pairs
  • VAR-HIGH 18 variants
  • BOOK-MID 1,433
  • PHOTO-FINISH UCLA

Nearest frequency peer: UCLA (-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 “unreasonable”

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

corpus weight

What this shows “unreasonable” 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).

unreasonable vs unreasonably
92% similar

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

Key facts for unreasonable
PropertyValue
Headwordunreasonable
LanguageEnglish
Part of speechAdjective
IPA/ʌnˈɹiːz.(ə)nə.bl̩/
Letters12
Frequency rank#10,470
Misspellings tracked18
Confusable pairs1
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “unreasonable”

Word frequency stretches from the small set of words we reach for constantly (left) out to the long tail barely used once in a while (right).unreasonablelands here:

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

Scale is logarithmic (each tick is 10× rarer). Same rarity band neighbours include “UCLA” (#10,469), “unsure” (#10,471), “UAE” (#10,468). Among 1,433 “U” headwords, “unreasonable” is #10,470. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 18 spelling variants around unreasonable (IPA /ʌnˈɹiːz.(ə)nə.bl̩/), anadjective. Corpus frequency is #10,470 among 1,433 “U” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 18 likely wrong-spelling variants for unreasonable, with forms such as "nureasonable", "unerasonable", and "unnreasonable". Every one of these variants traces to a single-character edit -- an added or dropped letter, a swapped consonant, or a vowel swap -- the kind of slip a spell-checker is built to catch. It also participates in 1 confusable-pair relationship, "unreasonably", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From Middle English unresonable, equivalent to un- + reasonable, originally partly after Latin irratiōnābilis. The correct English form is unreasonable, spelled U-N-R-E-A-S-O-N-A-B-L-E.

Definition

  1. 1
    Without the ability to reason; unreasoning.
  2. 2
    Not reasonable; going beyond what could be expected or asked for.

Recorded use

Wiktionary examples

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

  1. Hold thy desperate hand: Art thou a man? thy form cries out thou art: Thy tears are womanish; thy wild acts denote The unreasonable fury of a beast: Unseemly woman in a seeming man!
  2. For it seemeth to me vnreasonable, to send a prisoner, and not withall to signifie the crimes laid against him.

Etymology

From Middle English unresonable, equivalent to un- + reasonable, originally partly after Latin irratiōnābilis.

This word in other languages

irrazonable(Español)déraisonnable(Français)unvernünftig(Deutsch)insensato(Português)

Common misspellings

Also misspelled as:

  • nureasonable
  • unerasonable
  • unnreasonable
  • unraesonable
  • unreaosnable
  • unreasnoable
  • unreasoanble
  • unreasonabble
  • unreasonabel
  • unreasonablle
  • unreasonalbe
  • unreasonbale
  • unreasonible
  • unreasonnable
  • unreassonable
  • unresaonable
  • unrreasonable
  • urneasonable

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of unreasonable - 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.

nureasonable2unerasonable2unnreasonable1unraesonable2unreaosnable2unreasnoable2unreasoanble2unreasonabble1
Edit distance from "unreasonable"

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 "unreasonable"?
"unreasonable" is spelled U-N-R-E-A-S-O-N-A-B-L-E. The IPA pronunciation is /ʌnˈɹiːz.(ə)nə.bl̩/.
What does "unreasonable" mean?
As an adjective, "unreasonable" means: Without the ability to reason; unreasoning.
What words are commonly confused with "unreasonable"?
"unreasonable" is commonly confused with "unreasonably". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "unreasonable"?
The IPA (International Phonetic Alphabet) transcription for "unreasonable" is /ʌnˈɹiːz.(ə)nə.bl̩/. 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 "unreasonable"?
From Middle English unresonable, equivalent to un- + reasonable, originally partly after Latin irratiōnābilis. 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 "unreasonable", not the corpus desk frequency band.

Same letter count

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

anticipation#10,487disciplinary#10,353acceleration#10,640resurrection#10,271

Similar misspelling depth

Headwords with a similar count of attested misspellings (18 here; floor ≥5).

appropriately18 variantscomfortably18 variantsdisappearance18 variantsexceptionally18 variants

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

Source: FrequencyWords open word-frequency list