Definition of doubtful
- It is doubtful that they ever knew what happened.
- a doubtful premise
- They were doubtful about the advantages of the new system.
- The outcome of the election remains doubtful.
- of doubtful repute
I tried to reassure them, but they remained doubtful.
The truth of the statements was doubtful.
Their decisions were based on data of doubtful accuracy.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'doubtful.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: uncertain or unsure about something
: not likely to be true : not probable
: likely to be bad : not worthy of trust
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