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doubtless

doubtless

24 3.7
In a way that is certain
  • adverb
  • /ˈdaʊt.ləs/
translation icon : sin duda
  • Through effort, talent, and doubtless some luck, you have succeeded in acquiring an excellent education.
  • doubtless many
  • doubtless important factors

And then he tells us, too, that invention is doubtless the most important one.

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Examples

  • This is an air lock, as you are doubtless aware.

  • Doubtless those people in Philadelphia would not approve.

  • If these were the subjects of conversation, I would doubtless have lost interest.

    Fiction book (1996)
  • And I decided to see as much as I could, as it was doubtless a unique sight.

    Fiction book (1994)
  • Rational women should continue to worry about that financial risk; doubtless many of them do.

    Academic text (2008)
  • What he shows us about human personality and character and emotion has doubtless been there since the beginning of time.

  • Doubtless you are correct, Watson.

  • The government, pressured by the military and others to continue reform, will doubtless resist at first.

    Academic text (1996)
  • Vetting of Muslim doctors for radicalism may prove ineffective and will doubtless raise civil liberty concerns.

    Academic text (2008)
  • doubtless, the team's hard work will pay off in the end.

Synonyms

certainly
vsdoubtless
1.0

Showing that something is true or will happen without any doubt

is the shorter neutral way to state that same confidence
absolutely
vsdoubtless
1.0

Completely and without any doubt

focuses only on certainty rather than total or absolute degree
definitely
vsdoubtless
1.0

To say that something is true without any doubt

is the plain form that expresses certainty without emphasis
surely
vsdoubtless
1.0

Without any doubt

is the direct adverbial confirmation without implying expectation
for sure
vsdoubtless
  • Informal
700 2.0

Without any doubt

is the more neutral form used across styles
undoubtedly
vsdoubtless
156 3.5

Without any doubt

is similar but slightly more neutral in tone
for certain
vsdoubtless
104 1.3

To be completely sure and have no doubt

is similar but often used more in formal statements
decidedly
vsdoubtless
56 3.9

In a clear way that leaves no doubt

is the neutral certainty form without the decisive emphasis
unequivocally
vsdoubtless
  • Formal
37 6.9

In a clear way that leaves no doubt

is similar but can be used more casually or briefly
undeniably
vsdoubtless
29 4.4

In a clear way that leaves no doubt

says the same thing but without stressing undeniability
unquestionably
vsdoubtless
26 3.7

Without any doubt

is a more neutral claim of certainty rather than absolute finality
assuredly
vsdoubtless
19 4.7

Without any doubt and with confidence

conveys certainty but without the added sense of confidence
without doubt
vsdoubtless
7 2.3

Says that something is certainly true

is the compact adverbial form that gives the same affirmation
beyond a doubt
vsdoubtless
7 3.0

Completely sure with no chance of being wrong

is the plain assertion of certainty without that emphatic stress
indisputably
vsdoubtless
7 5.4

In a way that is clearly true and cannot be doubted

expresses certainty but does not stress legal or formal undeniability
beyond doubt
vsdoubtless
4 2.8

Completely certain with no possible reason to think it is wrong

is the shorter way to assert the same lack of doubt
indubitably
vsdoubtless
  • Formal
3 8.6

Clearly and without doubt

is the straightforward adverbial form without that absolute tone
doubtlessly
vsdoubtless
3 4.6

In a way that shows there is no doubt

is the neutral adverbial form with the same basic sense
inarguably
vsdoubtless
3 6.8

Clearly true and cannot be denied

is the basic certainty expression without the argumentative focus
irrefutably
vsdoubtless
2 7.4

In a way that cannot be proved wrong

gives a plain affirmation without claiming disproof is impossible
incontrovertibly
vsdoubtless
  • Formal
1 9.1

In a way that no one can doubt

is used for ordinary certainty rather than indisputable proof
unarguably
vsdoubtless
1 6.1

It is clearly true and cannot be doubted

expresses belief in truth but not the same argumentative closure
unassailably
vsdoubtless
1 9.0

Clearly true and cannot be doubted

gives a simple assurance without the sense of invulnerability
by all odds
vsdoubtless
1 6.9

Very likely and without any doubt

is the simple confirmation without the emphatic idiomatic tone
undisputedly
vsdoubtless
1 5.8

Clearly and without any doubt

asserts certainty generally without emphasizing dispute absence
incontestably
vsdoubtless
  • Formal
1 7.7

In a way nobody can doubt

is the everyday confirmation form rather than formal proof language
sure as the world
vsdoubtless
  • Informal
9.1

Certain to happen

is a very emphatic form rather than the plain expression of certainty

Antonyms

25 3.0

Not sure about something and not ready to believe it

How Certain

certainly
1.0
doubtless
24 3.7
probably
1.0
perhaps
1.0

Surface Forms

doubtless positive

Morphology

doubtless = doubt (transparent) = doubt + less

Formed by adding the productive suffix '-less' to 'doubt' to mean 'without doubt'; the relation is direct and clear to learners.

Etymology

The word doubtless joins doubt and the ending -less, where -less means 'without' and you can see it in fearless. So doubtless means 'without doubt', which is why it is used to mean 'certainly'.