unauthorized

adj

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

The verdict

“unauthorized” has 17 generated spelling variants in the English index at frequency #13,630. The variants make it a useful spelling check.

#13,630
frequency rank, English
1,433
“U” headwords
17
tracked misspellings
1
confusable pair

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Not having any authority.

Corpus desk

Index EN-unauthorized · unauthorized · English

unauthorized · rank #13,630 · 17 variants · 1 confusable

  • FREQ-MID #13,630
  • LEN-MEGA 12 letters
  • VOW-6 6 vowels
  • CONFUS-LOW 1 pairs
  • VAR-HIGH 17 variants
  • BOOK-MID 1,433
  • PHOTO-FINISH umm

Nearest frequency peer: umm (-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 “unauthorized”

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

corpus weight

What this shows “unauthorized” 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).

unauthorized vs unauthorised
92% similar

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

Key facts for unauthorized
PropertyValue
Headwordunauthorized
LanguageEnglish
Part of speechAdjective
Letters12
Frequency rank#13,630
Misspellings tracked17
Confusable pairs1
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “unauthorized”

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right).unauthorizedlands 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 “umm” (#13,629), “undo” (#13,631), “Tunisia” (#13,628). Among 1,433 “U” headwords, “unauthorized” is #13,630. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 17 spelling variants around unauthorized, anadjective. Corpus frequency is #13,630 among 1,433 “U” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 17 likely wrong-spelling variants for unauthorized, with forms such as "nuauthorized", "uanuthorized", and "unatuhorized". 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, "unauthorised", a pairing that trips writers up because the two words share enough sound or shape to blur together.

Etymologically, the entry records: From un- + authorized. The correct English form is unauthorized, spelled U-N-A-U-T-H-O-R-I-Z-E-D.

Definition

  1. 1
    Not having any authority.
  2. 2
    Without official authorization.

Recorded use

Wiktionary example

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

  1. The dangers of scofflawry vary wildly. The person who illegally spits on the sidewalk remains disgusting, but clearly poses less risk to others than the company that illegally buries hazardous chemical waste in an unauthorized location.

Etymology

From un- + authorized.

This word in other languages

Common misspellings

Also misspelled as:

  • nuauthorized
  • uanuthorized
  • unatuhorized
  • unauhtorized
  • unauthhorized
  • unauthoirzed
  • unauthoriezd
  • unauthorizde
  • unauthorizedd
  • unauthorizzed
  • unauthorrized
  • unauthorzied
  • unauthroized
  • unautohrized
  • unautthorized
  • unnauthorized
  • unuathorized

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of unauthorized - measured in single-character edits (insert, delete, or substitute a letter). Larger bars are easier to catch; one-edit slips are the sneakiest.

nuauthorized2uanuthorized2unatuhorized2unauhtorized2unauthhorized1unauthoirzed2unauthoriezd2unauthorizde2
Edit distance from "unauthorized"

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 "unauthorized"?
"unauthorized" is spelled U-N-A-U-T-H-O-R-I-Z-E-D.
What does "unauthorized" mean?
As an adjective, "unauthorized" means: Not having any authority.
What words are commonly confused with "unauthorized"?
"unauthorized" is commonly confused with "unauthorised". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What is the origin of the word "unauthorized"?
From un- + authorized. 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 "unauthorized", not the corpus desk frequency band.

Same letter count

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

Similar misspelling depth

Headwords with a similar count of attested misspellings (17 here; floor ≥5).

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

Source: FrequencyWords open word-frequency list