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English vocabulary · C1

Preposterous

/prɪˈpɑː.stər.əs/ · adj.

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It means so absurd and unreasonable that it is almost funny — something no one could take seriously.

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Example sentences

Word origin and roots

from Latin

Synonyms and nuances

Words with the same root

post — after

Lesson notes

Preposterous. It means so absurd and unreasonable that it is almost funny — something no one could take seriously.

Similar words are absurd, ridiculous, and ludicrous. Use preposterous when something is so unreasonable it makes you laugh.

His plan to walk to Japan was preposterous. The idea that she would work for free was preposterous.

From Latin. pre- means before. post- means after. Before after — completely backwards — that is preposterous.