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preposterous

See definition of preposterous on Dictionary.com

synonyms for preposterous

  • absurd
  • crazy
  • excessive
  • fantastic
  • foolish
  • impossible
  • incredible
  • insane
  • irrational
  • laughable
  • ludicrous
  • nonsensical
  • outrageous
  • senseless
  • shocking
  • silly
  • stupid
  • unbelievable
  • unreasonable
  • unthinkable
  • asinine
  • exorbitant
  • extravagant
  • extreme
  • far-out
  • harebrained
  • monstrous
  • out of the question
  • taking the cake
  • thick
  • too much
  • unusual
  • wacky
  • wild
See also synonyms for: preposterously / preposterousness
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antonyms for preposterous

MOST RELEVANT
  • bad
  • balanced
  • believable
  • credible
  • good
  • intelligent
  • logical
  • plain
  • plausible
  • poor
  • possible
  • practical
  • rational
  • realistic
  • reasonable
  • responsible
  • sane
  • sensible
  • serious
  • smart
  • sound
  • tenable
  • wise
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

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How to use preposterous in a sentence

DeRosa also said she believed that the idea that she would lead an investigation into workplace culture was preposterous.
LEADERS OF THE TIME’S UP ANTI-HARASSMENT GROUP WORKED CLOSELY WITH CUOMO AIDE AFTER FIRST ACCUSATION AGAINST HIM SURFACEDMICHAEL SCHERER, JOSH DAWSEYAUGUST 26, 2021WASHINGTON POST
It’s heard in the preposterous arguments against vaccinating children and Darwin’s theory of evolution by means of natural selection.
GALILEO THE SCIENCE PUBLICIST - ISSUE 103: HEALTHY COMMUNICATIONMARIO LIVIOJULY 14, 2021NAUTILUS
Stone’s film is finally sunk by its preposterous visuals, which are legitimately hilarious.
OLIVER STONE’S CRACKPOT JFK CONSPIRACY MOVIE IS A HILARIOUS, HEAD-SPINNING MESSCASPAR SALMONJULY 12, 2021THE DAILY BEAST
In all those years focusing on survival, the cynical voices were given a preposterous amount of room to criticize.
THE WNBA ONCE WORRIED ABOUT SURVIVAL. NOW IT HAS A BOLDER VISION.JERRY BREWERMAY 14, 2021WASHINGTON POST
At the airport, it felt preposterous to obey the social-distancing signs throughout the terminal, only to be squashed like standing sardines once we all got on the plane.
GRANDMA HUGS BEAT OUT PIÑA COLADAS FOR OUR PANDEMIC-ERA SPRING BREAKPETULA DVORAKAPRIL 8, 2021WASHINGTON POST
The union’s chairman, Gregg Pemberton, called “preposterous” what he dubbed the report’s recurring theme that policing is harmful.
GROUP SEEKING TO REINVENT POLICING IN DISTRICT CALLS FOR SWEEPING CHANGESPETER HERMANNAPRIL 1, 2021WASHINGTON POST
Using sound to decode brain activity might seem preposterous, but ultrasound has had quite the run in medicine.
HOW SCIENTISTS USED ULTRASOUND TO READ MONKEYS’ MINDSSHELLY FANMARCH 30, 2021SINGULARITY HUB 
Do not fall into the old political trap of shading what the person says to make it seem preposterous or evil.
FIGHTING WITH A FAMILY MEMBER OVER POLITICS? TRY THESE 4 STEPSBELINDA LUSCOMBEFEBRUARY 19, 2021TIME
The story I’d worked up, complete with a love strong enough to transcend this deadly pandemic, started to seem preposterous.
LOVE, LONELINESS, AND THE CHICKEN IN MY FREEZERELAZAR SONTAGFEBRUARY 9, 2021EATER
But he made it most emphatically clear that the thing Alessandro had asked was not only out of the question, but preposterous.
RAMONAHELEN HUNT JACKSON
SYNONYM OF THE DAY
OCTOBER 26, 1985
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WORDS RELATED TO PREPOSTEROUS

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.