doubtful - definition and synonyms

 
 
adjective 

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/ˈdaʊtf(ə)l/
  1. 1
    [not usually before noun] not certain or likely to happen or be true

    Already the whole project was looking doubtful.

    it is doubtful (that)/whether/if/how:

    It is doubtful whether he will survive.

    1. a.
      mainly journalism unlikely to be doing something, especially playing in a match

      Kirkwood is doubtful for tonight’s match.

  2. 2
    [not usually before noun] not feeling certain about something

    You still seem a bit doubtful.

    doubtful about:

    He was doubtful about the accuracy of the results.

    doubtful (that)/whether/if:

    The board was doubtful that her estimates were realistic.

derived word

doubtfully

 

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adverb