undefeated

adj

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

"undefeated" is a 10-letter English headword indexed on PlainSpell.

The verdict

“undefeated” has 14 generated spelling variants in the English index at frequency #12,707. The variants make it a useful spelling check.

#12,707
frequency rank, English
1,433
“U” headwords
14
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Never defeated; always victorious.

Corpus desk

Index EN-undefeated · undefeated · English

undefeated · rank #12,707 · 14 variants · 2 confusables

  • FREQ-MID #12,707
  • LEN-MEGA 10 letters
  • VOW-5 5 vowels
  • CONFUS-LOW 2 pairs
  • VAR-HIGH 14 variants
  • BOOK-MID 1,433
  • PHOTO-FINISH unanimously

Nearest frequency peer: unanimously (-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 “undefeated”

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

corpus weight

What this shows “undefeated” 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).

undefeated vs underrated
80% similar
undefeated vs undetected
80% similar

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

Key facts for undefeated
PropertyValue
Headwordundefeated
LanguageEnglish
Part of speechAdjective
Letters10
Frequency rank#12,707
Misspellings tracked14
Confusable pairs2
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “undefeated”

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).undefeatedlands 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 “unanimously” (#12,706), “unfamiliar” (#12,708), “UI” (#12,705). Among 1,433 “U” headwords, “undefeated” is #12,707. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 14 spelling variants around undefeated, anadjective. Corpus frequency is #12,707 among 1,433 “U” headwords. Dominant gloss: "Never defeated; always victorious.".

Our generated misspelling index lists 14 likely wrong-spelling variants for undefeated, with forms such as "nudefeated", "udnefeated", and "unddefeated". 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 also participates in 2 confusable-pair relationships, "underrated", "undetected", since the words sound or look close enough that writers reach for the wrong one mid-sentence.

Etymologically, the entry records: From un- + defeated. The correct English form is undefeated, spelled U-N-D-E-F-E-A-T-E-D.

Definition

  1. 1
    Never defeated; always victorious.

Recorded use

Wiktionary examples

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

  1. Near-synonyms: unvanquished, unbeaten, unconquered
  2. He was the undefeated tiddlywinks champion of the school.

Etymology

From un- + defeated.

This word in other languages

invicto(Español)invaincu(Français)unbesiegt(Deutsch)

Common misspellings

Also misspelled as:

  • nudefeated
  • udnefeated
  • unddefeated
  • undeefated
  • undefaeted
  • undefeaetd
  • undefeatde
  • undefeatedd
  • undefeatted
  • undefetaed
  • undeffeated
  • undfeeated
  • unedfeated
  • unndefeated

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of undefeated - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

nudefeated2udnefeated2unddefeated1undeefated2undefaeted2undefeaetd2undefeatde2undefeatedd1
Edit distance from "undefeated"

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 "undefeated"?
"undefeated" is spelled U-N-D-E-F-E-A-T-E-D.
What does "undefeated" mean?
As an adjective, "undefeated" means: Never defeated; always victorious.
What words are commonly confused with "undefeated"?
"undefeated" is commonly confused with "underrated", "undetected". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
What is the origin of the word "undefeated"?
From un- + defeated. 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 "undefeated", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 10 letters (nearest by frequency rank).

unfamiliar#12,708sentencing#12,680comforting#12,744courthouse#12,746

Similar misspelling depth

Headwords with a similar count of attested misspellings (14 here; floor ≥5).

upgrading14 variantsviolently14 variantsarthritis14 variantspaperback14 variants

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

Source: FrequencyWords open word-frequency list