adverb
no doubt
noh DOWT
No doubt (adverb) means Very probably; used to show that the speaker assumes something is true without being able to prove it. Example: “You are no doubt wondering why I called this meeting.”
adverb
1
Very probably; used to show that the speaker assumes something is true without being able to prove it.
"You are no doubt wondering why I called this meeting."
"She will no doubt claim she was never told."
phrase
1
informal Certainly; used to agree emphatically with what someone has just said.
""That was the best set of the night." "No doubt.""
noun
1
An absence of uncertainty, as in the fixed phrase there is no doubt that.
"There is no doubt that the policy has cost jobs."
How to use no doubt
Learner’s notesIn plain EnglishAlmost certainly, or a way of saying 'I agree'.
When to use it
The adverb is neutral and common in writing; the one-word agreement use is casual speech only.
Memory tip
No doubt does not take 'that' when used as an adverb: 'He is no doubt right', not 'He is no doubt that right'.
Trace the full origin ↓
Easily confused with
Common pairings
no doubt about it
there is no doubt that
you will no doubt recall
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You are _____ wondering why I called this meeting.
Etymology
Inherited from Middle English ne doute, a calque of Old French saunz doute, itself borrowed unadapted into Middle English.
Synonyms
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Rhymes for no doubt
See all rhymes for no doubt →Frequently asked questions
What is the difference between no doubt and undoubtedly?
Undoubtedly states that something is genuinely certain. No doubt is usually weaker and often slightly ironic: it signals a confident assumption rather than proven fact, as in 'he will no doubt blame the weather'.
Is it no doubt or without a doubt?
Without a doubt is stronger and means truly certain. No doubt often carries a hint of 'I assume', so if you mean genuine certainty, use without a doubt.
Can no doubt be a full answer?
Yes. In informal speech, especially American English, 'No doubt' on its own means 'I agree completely'.
What is the meaning of no doubt?
"no doubt" (adverb) means very probably; used to show that the speaker assumes something is true without being able to prove it.
