doubtverb
third-person singular doubts past tense doubted past participle doubted present participle doubting
think not truethink that something is probably not true or will probably not happen
With whether or if, the speaker is simply not sure: I doubt whether it matters. With that, or with no linking word, the speaker thinks the answer is probably no.
transitive [T] verb + that-clause [V + that] verb + object [V + obj] verb + wh-clause [V + wh]
- I doubt that she'll come tonight. V + that
- "Will it rain?" "I doubt it." V + obj
- I doubt he even noticed the mistake. V + that (that left out)
- I doubt whether the plan will work. V + wh
Collocations
adverb + verb seriously doubt, strongly doubt, rather doubtnot trustnot believe that someone is honest or that something is true or good enough
transitive [T] verb + object [V + obj] verb + that-clause [V + that]
- She never doubted his story. V + obj
- Don't doubt yourself; you're ready for this. V + obj
- Nobody doubts her ability to do the job. V + obj
- I didn't doubt for a moment that you would win. V + that
Collocations
adverb + verb never doubtSynonyms question
Antonyms trust; believe
Word family
- doubt
- doubtful
- doubtless
- undoubtedly
Usage
I don't doubt that and there's no doubt that mean the speaker is sure: I don't doubt that you tried means I am sure you tried. In a negative sentence or a question, doubt is usually followed by that, not whether.