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doubtful

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adjective doubtful pronunciation in British English /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.

  3. 3
    [usually before noun] not satisfactory or acceptable

    documents of doubtful authenticity

derived word

doubtfully

 doubtful pronunciation in British English  adverb

creep

used with other nouns to describe the unexpected and often unwanted effects of a particular situation or trend

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