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[non-pluhs, non-pluhs] /nɒnˈplʌs, ˈnɒn plʌs/
verb (used with object), nonplussed or nonplused, nonplussing or nonplusing.
to render utterly perplexed; puzzle completely.
a state of utter perplexity.
Origin of nonplus
1575-85; (noun) < Latin nōn plūs literally, not more, no further, i.e., a state in which nothing more can be done
1. perplex, confuse, confound, disconcert. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for nonplused
Historical Examples
  • He had expected to intimidate our hero easily, and now he was nonplused.

  • The neighbor could tell no more, and Captain Putnam and the cadets were nonplused.

    The Putnam Hall Cadets

    Arthur M. Winfield
  • nonplused for the moment, the artist wanted then to carry off the thing easily.

    Artist and Model

    Ren de Pont-Jest
  • For a moment, I was too nonplused to speak; I could only stare at her.

    The Holladay Case Burton E. Stevenson
  • At the time, however, I was nonplused and rather disturbed in my dreams of the future.

    Murder in Any Degree Owen Johnson
  • To say that I was nonplused is to say less than the truth; I was amazed.

  • And for a moment she stared at the scene, nonplused, discomfited.

    The White Moll Frank L. Packard
  • Something had gone wrong in the engine room, and the engineer was nonplused.

    "Say Fellows--"

    Wade C. Smith
  • I can smoke my own pipe in turn, but when the Indian pipe comes around, I am nonplused.

  • The youth stood there with the coin in his fingers, nonplused and bewildered; of course he had not understood a word.

    A Tramp Abroad, Complete Mark Twain (Samuel Clemens)
British Dictionary definitions for nonplused


verb -plusses, -plussing, -plussed (US) -pluses, -plusing, -plused
(transitive) to put at a loss; confound: he was nonplussed by the sudden announcement
noun (pl) -pluses
a state of utter perplexity prohibiting action or speech
Word Origin
C16: from Latin nōn plūs no further (that is, nothing further can be said or done)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for nonplused



"to bring to a nonplus, to perplex," 1590s, from the noun (1580s), properly "state where 'nothing more' can be done or said," from Latin non plus "no more, no further" (see plus). Related: Nonplussed.

Online Etymology Dictionary, © 2010 Douglas Harper
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