The word preposterous means absurd, impossible. When you say something is preposterous, you are saying that it is impossible for that to be the case.

  • The idea of preposterous is to set something up so that it cannot possibly be true.

  • The preposterous idea was that he could fly.

Definition of preposterous


so unreasonable as to invite derision


absurd, cockeyed, derisory, idiotic, laughable, ludicrous, nonsensical, ridiculous

Nearby Words

preposterous Pronunciation in a video (2)

Example Sentences for preposterous

  • 1

    The notion is preposterous.

  • 2

    This is preposterous aggrandizement.

  • 3

    The claim is clearly preposterous.

  • 4

    The whole situation is preposterous.

  • 5

    In the case of charcoal, the notion is preposterous.

  • 6

    Preposterous things happen in the world.

  • 7

    The claims of the article are quite preposterous

  • 8

    The rest of your comments are preposterous.

  • 9

    The reality sunnily undermines the preposterous fantasy.

  • 10

    At the time he said that, the idea seemed preposterous.