improbable (adj.)

  1. not likely to be true or to occur or to have occurred; legislation on the question is highly unlikely; an improbable event

    [ Syn: unlikely ]

  2. having a probability too low to inspire belief

    [ Syn: unbelievable , unconvincing , unlikely ]

  3. too improbable to admit of belief; a tall story

    [ Syn: marvelous , marvellous , tall ]

The dictionary is based on the WordNet Electronic Lexical Database.
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