doubtless

[ dout-lis ]

/ ˈdaʊt lɪs /

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See synonyms for: doubtless / doubtlessness on Thesaurus.com

adverb Also doubt·less·ly.

without doubt; certainly; surely; unquestionably.

probably or presumably.

adjective

free from doubt or uncertainty; certain, sure.

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Origin of doubtless

First recorded in 1300–50, doubtless is from the Middle English word douteles.See doubt, -less

synonym study for doubtless

1, 2. Doubtless, undoubtedly, indubitably, unquestionably are adverbs that express certainty. Doubtless, although it sometimes denotes an absolute degree of certainty, more often means “probably,” “presumably,” or “no doubt”: She will doubtless accept the offer. Undoubtedly means “beyond doubt”: undoubtedly the most prolific and popular composer of his time. Indubitably and unquestionably both affirm an unassailable conviction; they differ only in tone, indubitably being appropriate to more formal or learned discourse and unquestionably appropriate in a wider range of contexts and styles: an indubitably (or unquestionably) accurate transliteration of the hieroglyphic text; unquestionably the hottest running back in the league.

OTHER WORDS FROM doubtless

doubt·less·ness, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use doubtless in a sentence

In "Pamela 1" Louie wades deeper into the gender pool, doubtlessly inviting a tidal wave of backlash.
Louie Attempts Rape (and Explores the ‘Nice Guy’ Phenomenon)|Amy Zimmerman|June 3, 2014|DAILY BEAST
Had he been appointed and confirmed chairman, he would doubtlessly have been an excellent one.
The Larry Summers Whodunit: Who Killed His Shot at Running the Fed?|Daniel Gross|September 15, 2013|DAILY BEAST
With the freed prisoners fueling the insurgency, the fighting doubtlessly will continue until both sides are exhausted.
Pakistan’s Sinister Use of Prisoners|Ron Moreau|January 26, 2013|DAILY BEAST
They doubtlessly wish they had gone to Ohio or Florida instead of the land of small roads and small houses.
The Ugly American: Mitt Romney’s Disastrous Overseas Excursion|Robert Shrum|July 31, 2012|DAILY BEAST

Unfortunately for the people of Afghanistan, the future will doubtlessly hold may more months, if not years, of hard fighting.
Obama’s Afghan Pullout|Sami Yousafzai, Ron Moreau|June 23, 2011|DAILY BEAST
Only he could have furnished you with the details concerning the family of Joel which he doubtlessly received from his own father.
The Poniard's Hilt|Eugne Sue
The atrocity would have doubtlessly been more serious had not the popular Dom Pedro interfered.
South America|W. H. Koebel
We are expected at the hacienda by someone who will doubtlessly have moved the sentinels from the spot where we shall land.
The Tiger-Slayer|Gustave Aimard
Doubtlessly he sat somewhere close to her, lumpishly content.
The Return of the Soldier|Rebecca West
He would doubtlessly have swung himself to the platform of the rear car had it not been for Bobs awkwardness.
Left Half Harmon|Ralph Henry Barbour

British Dictionary definitions for doubtless

doubtless

/ (ˈdaʊtlɪs) /

adverb Also: doubtlessly (sentence substitute or sentence modifier)

certainly

probably

adjective

certain; assured

Derived forms of doubtless

doubtlessness, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

doubtless

Origin of doubtless

synonym study for doubtless

OTHER WORDS FROM doubtless

Words related to doubtless

How to use doubtless in a sentence

British Dictionary definitions for doubtless

Derived forms of doubtless