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preposterous

[pri-pos-ter-uh s, -truh s] /prɪˈpɒs tər əs, -trəs/
adjective
1.
completely contrary to nature, reason, or common sense; absurd; senseless; utterly foolish:
a preposterous tale.
Origin
1535-1545
1535-45; < Latin praeposterus with the hinder part foremost. See pre-, posterior, -ous
Related forms
preposterously, adverb
preposterousness, noun
unpreposterous, adjective
unpreposterously, adverb
unpreposterousness, noun
Synonyms
unreasonable, excessive, ridiculous. See absurd.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for preposterousness

preposterous

/prɪˈpɒstərəs/
adjective
1.
contrary to nature, reason, or sense; absurd; ridiculous
Derived Forms
preposterously, adverb
preposterousness, noun
Word Origin
C16: from Latin praeposterus reversed, from prae in front, before + posterus following
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for preposterousness

preposterous

adj.

1540s, from Latin praeposterus "absurd, contrary to nature, inverted, perverted, in reverse order," literally "before-behind" (cf. topsy-turvy, cart before the horse), from prae "before" + posterus "subsequent." Related: Preposterously; preposterousness.

Online Etymology Dictionary, © 2010 Douglas Harper
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