V2 Vocabulary Building Dictionary
Definition: against reason and good sense
Synonyms: implausible, unbelievable, absurd, ridiculous, inane, outrageous, laughable
Antonyms: plausible, doable, feasible, reasonable
Tips: Preposterous comes from the Latin word meaning "in the wrong order" or "having the first thing last." Since this is an unnatural and absurd idea, this has become the essential meaning of preposterous.
"That's preposterous!" she said with indignation. (absurd, ridiculous)
I must admit, this idea seemed preposterous at first, but it really worked out well. (laughable, outrageous)
It was a preposterous suggestion, and I was very offended by it. (outrageous, absurd)
No one takes his preposterous ideas seriously. (implausible, inane)
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