doubtless

1 of 2

adverb

doubt·​less ˈdau̇t-ləs How to pronounce doubtless (audio)
1
: without doubt
2

doubtless

2 of 2

adjective

: free from doubt : certain
doubtlessly adverb
doubtlessness noun

Examples of doubtless in a Sentence

Adverb she is doubtless the one and only girl for me doubtless you have heard this story before, but I'll tell it anyway Adjective another one of his doubtless predictions that will never come true
Recent Examples on the Web
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Adverb
What Happens Next The files released this week didn't contain any major bombshells challenging the official account of President Kennedy's murder, though conspiracy theories will doubtless remain. Josh Hammer, Newsweek, 19 Mar. 2025 Her heartfelt, proud speeches on the campaign trail have doubtless helped as well. David Sims, The Atlantic, 26 Feb. 2025
Adjective
Even moderately keen cornering produces body roll and would bring doubtless admonition from the rear seats. Mike Duff, Car and Driver, 18 Aug. 2023 And the all-boffo, all-the-time production is exhausting (which is doubtless why the rare quiet moments stand out). Bill Goodykoontz, The Arizona Republic, 29 Nov. 2022 See All Example Sentences for doubtless

Word History

First Known Use

Adverb

14th century, in the meaning defined at sense 1

Adjective

14th century, in the meaning defined above

Time Traveler
The first known use of doubtless was in the 14th century

Browse Nearby Words

Cite this Entry

“Doubtless.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/doubtless. Accessed 25 Mar. 2025.

Kids Definition

doubtless

1 of 2 adverb
doubt·​less ˈdau̇t-ləs How to pronounce doubtless (audio)

doubtless

2 of 2 adjective
: free from doubt : certain
doubtlessly adverb

More from Merriam-Webster on doubtless

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