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Doubtful has 10 synonyms. The top synonyms for doubtful are improbable, unlikely, untrustworthy, insecure, amoral, borderline, sceptical, without shame and 2 more. Another word for doubtful is improbable. Browse the full list below.
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| Random | DefinitionA common synonym for doubtful is improbable. Other synonyms include unlikely, untrustworthy, insecure, amoral.
Doubtful has 10 synonyms listed on Thesaurasize.
(adj): subject to, or causing doubt; Experiencing or showing doubt
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