doubtless

/ˈdaʊ̯tləs/

//ˈdaʊ̯tləs// adj

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

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

The verdict

“doubtless” has 12 generated spelling variants in the English index at frequency #25,739. The variants make it a useful spelling check.

#25,739
frequency rank, English
3,470
“D” headwords
12
tracked misspellings
2
confusable pairs

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Characterized by or experiencing no doubt at all, certain; undoubted; undoubting.

Corpus desk

Index EN-doubtless · doubtless · English

doubtless · rank #25,739 · 12 variants · 2 confusables

  • FREQ-MID #25,739
  • LEN-LONG 9 letters
  • VOW-3 3 vowels
  • CONFUS-LOW 2 pairs
  • VAR-MID 12 variants
  • BOOK-MID 3,470
  • PHOTO-FINISH disregarded

Nearest frequency peer: disregarded (-2 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 “doubtless”

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

corpus weight

What this shows “doubtless” 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).

doubtless vs doubles
78% similar
doubtless vs dauntless
78% similar

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

Key facts for doubtless
PropertyValue
Headworddoubtless
LanguageEnglish
Part of speechAdjective
IPA/ˈdaʊ̯tləs/
Letters9
Frequency rank#25,739
Misspellings tracked12
Confusable pairs2
SourceWiktionary (kaikki.org)

Frequency seat of misspelling magnet “doubtless”

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

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

Ticks step logarithmically, so each one marks a roughly tenfold drop in how often the word turns up. Same rarity band neighbours include “disregarded” (#25,737), “Dunlop” (#25,741), “dispensing” (#25,736). Among 3,470 “D” headwords, “doubtless” is #25,739. Source: FrequencyWords open word-frequency list.

A misspelling magnet

The generator records 12 spelling variants around doubtless (IPA /ˈdaʊ̯tləs/), anadjective. Corpus frequency is #25,739 among 3,470 “D” headwords. Wiktionary lists 2 senses, so context still picks the gloss.

Our generated misspelling index lists 12 likely wrong-spelling variants for doubtless, with forms such as "ddoubtless", "dobutless", and "doubbtless". 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 2 confusable-pair relationships, "doubles", "dauntless", where similar look or sound leads writers to substitute one word for another in context.

Etymologically, the entry records: From Middle English douteles, dowteles, equivalent to doubt + -less. The correct English form is doubtless, spelled D-O-U-B-T-L-E-S-S.

Definition

  1. 1
    Characterized by or experiencing no doubt at all, certain; undoubted; undoubting.
  2. 2
    Free from fear or suspicion.

Recorded use

Wiktionary examples

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

  1. There are those who have doubtless faith in revelation.
  2. It is doubtless that the old reprobate who sued for his daughter's hand heard some unsavory truths from the man.

Etymology

From Middle English douteles, dowteles, equivalent to doubt + -less.

This word in other languages

indudable(Español)zweifelsfrei(Deutsch)

Common misspellings

Also misspelled as:

  • ddoubtless
  • dobutless
  • doubbtless
  • doubltess
  • doubtelss
  • doubtles
  • doubtlless
  • doubtlses
  • doubttless
  • doutbless
  • duobtless
  • odubtless

Misspelling Pattern Breakdown

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

ddoubtless1dobutless2doubbtless1doubltess2doubtelss2doubtles1doubtlless1doubtlses2
Edit distance from "doubtless"

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 "doubtless"?
"doubtless" is spelled D-O-U-B-T-L-E-S-S. The IPA pronunciation is /ˈdaʊ̯tləs/.
What does "doubtless" mean?
As an adjective, "doubtless" means: Characterized by or experiencing no doubt at all, certain; undoubted; undoubting.
What words are commonly confused with "doubtless"?
"doubtless" is commonly confused with "doubles", "dauntless". These words look or sound similar but have different meanings. PlainSpell provides detailed comparisons for each pair.
How do you pronounce "doubtless"?
The IPA (International Phonetic Alphabet) transcription for "doubtless" is /ˈdaʊ̯tləs/. 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 "doubtless"?
From Middle English douteles, dowteles, equivalent to doubt + -less. 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 "doubtless", not the corpus desk frequency band.

Same letter count

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

dwindling#25,742dichotomy#25,732diaphragm#25,731enrolment#25,751

Similar misspelling depth

Headwords with a similar count of attested misspellings (12 here; floor ≥5).

emphatic12 variantsfilament12 variantsgenitalia12 variantsGranville12 variants

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

Source: FrequencyWords open word-frequency list