Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “doubt”

doubt

noun [C or U] uk   /daʊt/ us  
B1 (a feeling of) not being certain about something, especially about how good or true it is: I'm having doubts about his ability to do the job. If there's any doubt about the rocket's engines, we ought to cancel the launch. The prosecution has to establish his guilt beyond reasonable doubt (US beyond a reasonable) doubt. This latest scandal has raised doubts about his suitability for the post. [+ (that)] I never had any doubt (that) you would win. He's the most attractive man in the room, no doubt about that/it. no doubt C1 used to emphasize that what you are saying is true or likely to happen: We will, no doubt, discuss these issues again at the next meeting. No doubt you'll want to unpack and have a rest before dinner. cast doubt on sth C2 to make something seem uncertain: Witnesses have cast doubt on the suspect's innocence. in doubt B2 If the future or success of someone or something is in doubt, it is unlikely to continue or to be successful: The future of the stadium is in doubt because of a lack of money. without (a) doubt B2 used to emphasize your opinion: She is without (a) doubt the best student I have ever taught.
See also

doubt

verb [T] uk   /daʊt/ us  
B2 to not feel certain or confident about something or to think that something is not probable: I doubt whether/if I can finish the work on time. [+ that] They had begun to doubt that it could be done. He may come back tomorrow with the money, but I very much doubt it. I don't doubt his abilities. doubt sb/doubt sb's word C1 to not trust someone or believe what they say: He's never lied to me before, so I have no reason to doubt his word.
(Definition of doubt from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of doubt?
Browse related topics

You are looking at an entry to do with Certainty, but you might be interested in these topics from the Chance and possibility topic area:

Add Cambridge dictionaries to your browser to your website

Definitions of “doubt” in other dictionaries

Word of the Day

hello stranger

said to a person that you know but have not seen for a long time

Word of the Day

Come on – you can do it! Phrasal verbs with ‘come’.

by Liz Walter​,
November 19, 2014
As part of an occasional series on the tricky subject of phrasal verbs, this blog looks at ones formed with the verb ‘come’. If you are reading this blog, I’m sure you already know come from, as it is one of the first things you learn in class: I come from Scotland/Spain.

Read More 

silver splicer noun

November 17, 2014
informal a person who marries in later life Newly retired and now newlywed – rise of the ‘silver splicers’ Reaching pension age becomes a trigger to tie the knot as baby-boomers begin to redefine retirement

Read More