Vocabulary›C2›Nuance & precision in English›Connotation and hidden attitude›dubious
adjectiveC2

dubious

/ˈduː.bi.əs/
Lesson: Connotation and hidden attitude

Seeming not fully honest, reliable, or good enough to trust.

Dubious expresses doubt about a person, claim, source, or the quality of something without proving that it is dishonest or bad. It can also mean uncertain or causing doubt.

Illustration for dubious
EXAMPLES
  • The seller's explanation sounded dubious, so I asked for a receipt.
  • I'm dubious about the quality of this cheaper model.
  • That website makes some dubious claims about its products.
SYNONYMS
questionablesuspectuntrustworthyunreliable
ANTONYMS
trustworthyreliablecrediblesound
WORD FAMILY
dubiously (adverb) · dubiousness (noun)
GRAMMAR
Adjective · often before a noun or after be, seem, or sound · comparative and superlative usually formed with more and most
COMMON COLLOCATIONS
dubious claimdubious sourcedubious qualitydubious reputationhighly dubious
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