doubtless
/ˈdaʊ̯tləs/adjective, adverb
doubtless is spelled D-O-U-B-T-L-E-S-S: 9 letters and 2 syllables. It appears 1.2 times per million words in written English, the 25,751st most frequent word form (wordfreq, 2021 data). As an adjective, doubtless means “Characterized by or experiencing no doubt at all, certain; undoubted; undoubting” (English Wiktionary, September 2026).
How many letters and syllables are in doubtless?
| Letters | 9: D-O-U-B-T-L-E-S-S |
|---|---|
| Syllables | 2 (from its American pronunciation) |
| In writing | 1.2 times per million words; the 25,751st most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is doubtless?
Doubtless appears 1.2 times per million words in written English, the 25,751st most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce doubtless?
- /ˈdaʊ̯tləs/
- Canada /ˈdʌʊ̯tləs/
Doubtless has 2 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: En-us-doubtless.ogg, Wikimedia Commons (author and licence on each file's page).
Forms of doubtless
- doubtlesse
- doutless
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does doubtless mean?
The meanings the English Wiktionary records, quoted as written there (source below).
adjective
- 1
Characterized by or experiencing no doubt at all, certain; undoubted; undoubting.
- 2
obsoleteFree from fear or suspicion.
adverb
- 1
Without doubt; certainly; definitely; very probably, in all likelihood; doubtlessly.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Doubtless in Spanish, French, German and Portuguese
| Language | Words |
|---|---|
| German | zweifelsfrei, zweifellos |
| French | sans aucun doute, sans nul doute, indubitablement |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does doubtless come from?
From Middle English douteles, dowteles, equivalent to doubt + -less.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).