Doubtful
Doubtful adjective - Not feeling sure about the truth, wisdom, or trustworthiness of someone or something.
Unreliable is a synonym for doubtful in dangerous topic. In some cases you can use "Unreliable" instead an adjective "Doubtful", when it comes to topics like false, unstable, inauthentic.
Unreliable
Unreliable adjective - Not worthy of reliance or trust.
Doubtful is a synonym for unreliable in questionable topic. You can use "Doubtful" instead an adjective "Unreliable", if it concerns topics such as dangerous, false, unstable, inauthentic.
Nearby Words: unreliability, unreliably
Mutual synonyms
Related pairs
- suspect and doubtful
- suspect and unreliable
- dubious and doubtful
- dubious and unreliable
- questionable and doubtful
- questionable and unreliable
- unsettled and doubtful
- unsettled and unreliable
- precarious and doubtful
- precarious and unreliable
- chancy and doubtful
- chancy and unreliable
- unstable and doubtful
- unstable and unreliable
Cite this Source
Unreliable and Doubtful. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/doubtful/unreliable
Doubtful & Unreliable. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/doubtful/unreliable>.
Unreliable or Doubtful. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/doubtful/unreliable.
Google Ngram Viewer shows how "doubtful" and "unreliable" have occurred on timeline