preposterous

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adjective pre·pos·ter·ous \pri-ˈpäs-t(ə-)rəs\

Definition of preposterous

  1. :  contrary to nature, reason, or common sense :  absurd

preposterously

adverb

preposterousness

noun

Examples of preposterous in a sentence

  1. The whole idea is preposterous!

  2. <the idea that extraterrestrials built the pyramids is preposterous>

Origin and Etymology of preposterous

Latin praeposterus, literally, in the wrong order, from prae- + posterus hinder, following — more at posterior


First Known Use: 1533


PREPOSTEROUS Defined for English Language Learners

preposterous

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adjective pre·pos·ter·ous \pri-ˈpäs-t(ə-)rəs\

Definition of preposterous for English Language Learners

  • : very foolish or silly


PREPOSTEROUS Defined for Kids

preposterous

play
adjective pre·pos·ter·ous \pri-ˈpä-stə-rəs\

Definition of preposterous for Students

  1. :  making little or no sense :  foolish <a preposterous excuse>



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