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- Dictionarydoubtful/ˈdaʊtf(ʊ)l/
adjective
- 1. feeling uncertain about something: "he looked doubtful, but gave a nod" Similar Opposite
- 2. not known with certainty: "the fire was of doubtful origin" Similar Opposite
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Doubtful means lacking a definite opinion, conviction, or determination, or uncertain in outcome or quality. See synonyms, examples, word history, and related entries for doubtful.
Doubtful means uncertain or unlikely about something or someone. Learn how to use this adjective in different contexts, such as accounting, business, or academic English, with examples and translations.
When you're doubtful about something, you're not sure about it. You might feel doubtful about the picnic you've planned if the forecast calls for torrential rain. Whether you're uncertain, undecided, or suspicious, you can describe yourself as doubtful.
Learn the meaning of doubtful as an adjective, noun, and adverb, and how to use it in different contexts. Find synonyms, pronunciation, grammar, and usage notes for doubtful.
adj. 1. Subject to or causing doubt: a doubtful claim; doubtful prospects. 2. Experiencing or showing doubt: Doubtful that the cord would hold, we strengthened it. 3. Of uncertain outcome; undecided. 4. Raising doubts as to legitimacy, honesty, or respectability; suspicious: the candidate's doubtful past. See Usage Note at doubt. doubt′ful·ly adv.
Find 144 similar and opposite words for doubtful, an adjective meaning not feeling sure, questionable, or unlikely. Learn how to use doubtful and its synonyms in sentences with examples and contrast with antonyms.
(a feeling of) not being certain about something, especially about how good or true it is: have doubts about I'm having doubts about his ability to do the job. doubt about If there's any doubt about the rocket's engines, we ought to cancel the launch.
