preposterous

adjective
UK: /prɪˈpɒstərəs/
US: /prɪˈpɑːstərəs/

  1. Completely unreasonable or silly; not making sense.

    1. That's a preposterous idea, it will never work!
    2. The suggestion that I could finish the project in a day is preposterous.

  2. So foolish as to be laughable.

    1. His preposterous claim to be royalty was quickly disproven.
    2. It's preposterous to think he could get away with such a crime without any consequences.

Synonyms

absurd ridiculous ludicrous outrageous foolish silly

Frequently Asked Questions

The word "preposterous" in English means: Completely unreasonable or silly; not making sense., So foolish as to be laughable..

The phonetic transcription of "preposterous" is /prɪˈpɒstərəs/ in British English and /prɪˈpɑːstərəs/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "preposterous": absurd, ridiculous, ludicrous, outrageous, foolish, silly.

Example usage of "preposterous": "That's a preposterous idea, it will never work!". More examples on the page.