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certainly

certainly

1.0
Showing that something is true or will happen without any doubt
  • adverb
  • /ˈsɜrtənli/
translation icon : ciertamente
  • You will certainly succeed if you keep working hard.
  • almost certainly
  • most certainly
  • certainly true

Because it's certainly not what he saw.

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Examples

  • But I have certainly seen the tears flow.

  • 'I hesitate to say this is an important moment in our history, 'but it is certainly an extraordinary one.

  • Because it's certainly not what he saw.

  • I, you almost certainly will feel that again.

  • You know, it certainly could be OK.

  • Well, you certainly look the part.

  • So, yeah, certainly we have to pay the bills.

  • I mean, it certainly seems deeper to me now.

  • "England has produced some great writers, certainly, but precious few of them this century."

    Fiction book (1990)
  • The 9/11 attacks have certainly taken a toll and continue to do so.

    Academic text (2011)

Synonyms

absolutely
vscertainly
1.0

Completely and without any doubt

focuses on emphasizing truth or future likelihood rather than total degree
indeed
vscertainly
1.0

To emphasize and agree that something is true

is used to emphasize truth or future events rather than just confirmation
sure
vscertainly
  • Informal
1.0

To say certainly or definitely

is the standard emphatic form used in wider registers and formal speech
surely
vscertainly
1.0

Without any doubt

is often used to stress truth or likely future events more strongly
for sure
vscertainly
  • Informal
700 2.0

Without any doubt

is a more neutral phrase used to emphasize truth or future events
no doubt
vscertainly
515 1.8

Shows that something is almost certainly true, often before saying something different

serves as a straightforward emphasis of truth or future events without concession
undoubtedly
vscertainly
156 3.5

Without any doubt

uses emphasis often to predict or stress events rather than plain affirmation
for certain
vscertainly
104 1.3

To be completely sure and have no doubt

is used to emphasize truth or future events in normal speech
you bet
vscertainly
  • Informal
87 5.4

To say yes very strongly to show something is certain

is a general emphatic form used across formal and informal contexts
sure enough
vscertainly
58 2.7

Shows that something happens exactly as expected

is used more generally to emphasize truth or likelihood, not only expectation
decidedly
vscertainly
56 3.9

In a clear way that leaves no doubt

emphasizes truth or future events rather than simply noting clarity
emphatically
vscertainly
38 5.5

In a strong, definite way that shows no doubt

uses emphasis to state truth or predict events in a general way
unequivocally
vscertainly
  • Formal
37 6.9

In a clear way that leaves no doubt

is used to emphasize truth or future outcomes in more general language
undeniably
vscertainly
29 4.4

In a clear way that leaves no doubt

adds general emphasis about truth or future rather than legal denial
unquestionably
vscertainly
26 3.7

Without any doubt

stresses truth or future events more directly than mere belief
doubtless
vscertainly
24 3.7

In a way that is certain

is used to give clear emphasis that something will happen or is true
assuredly
vscertainly
19 4.7

Without any doubt and with confidence

adds broader emphasis about truth or future rather than mere confidence
beyond a doubt
vscertainly
7 3.0

Completely sure with no chance of being wrong

is used as an emphatic general term for truth or future events
without doubt
vscertainly
7 2.3

Says that something is certainly true

serves to emphasize truth or future events in general speech
sure as shit
vscertainly
  • Offensive
5 9.9

You can be certain it is true

is a neutral emphatic form suitable for formal and informal use
verily
vscertainly
  • Archaic
4 9.9

People often say it in old or formal language to show truth

is used more widely to emphasize truth or future events in normal speech
indubitably
vscertainly
  • Formal
3 8.6

Clearly and without doubt

is used to stress truth or future events in everyday speech
doubtlessly
vscertainly
3 4.6

In a way that shows there is no doubt

is used to add strong emphasis that something is true or will happen
incontrovertibly
vscertainly
  • Formal
1 9.1

In a way that no one can doubt

adds general emphasis about truth or forthcoming events rather than legal proof
unarguably
vscertainly
1 6.1

It is clearly true and cannot be doubted

applies emphasis to truth or events rather than to argument failure
sure as shooting
vscertainly
  • Informal
1 8.2

Completely certain that something will happen

serves as the general emphatic word for truth or future events
undisputedly
vscertainly
1 5.8

Clearly and without any doubt

is used to stress truth or future events rather than consensus alone
sure as sugar
vscertainly
  • Informal
1 8.8

Certain to happen without any doubt

is the neutral emphatic adverb used widely for truth or future events
sure as eggs
vscertainly
  • Archaic
9.9

Says that something will definitely happen or is true

is used as a straightforward emphasis of truth or general prediction
sure as the world
vscertainly
  • Informal
9.1

Certain to happen

is used more generally to stress truth or future likelihood in speech

Antonyms

11 4.0

Act or speak in a way that shows you are not sure

4 3.8

In a way that shows you are not sure and have little confidence

How Certain

definitely
1.0
certainly
1.0
probably
1.0
possibly
1.0

Surface Forms

certainly positive

Morphology

certainly = certain (transparent) = certain + ly

Formed by the adjective 'certain' + the productive adverbial suffix '-ly', yielding the straightforward meaning 'in a certain/definite way'.

Etymology

Certainly comes from certain, which meant 'sure' or 'fixed', and the ending -ly turns it into a word that describes how something is done. Think of something stamped 'certain' — it is decided and will not change, so certainly means 'for sure' or 'without any doubt'.