[ non-pluhs ]
/ n蓲n藞pl蕦s /
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See synonyms for: nonplus / nonplused / nonplussed on Thesaurus.com

verb (used with object), non路plussed or non路plused,non路plus路sing or non路plus路ing.
to render utterly perplexed by something unexpected; puzzle completely.
Nonstandard. to cause to feel indifferent, calm, or unexcited: The food was good and all, but something about the place just nonplussed me.
a state of utter perplexity: When the protagonist's wife suddenly disappears, he's at a nonplus and fights with two different feelings.
Should you take this quiz on 鈥渟hall鈥 versus 鈥渟hould鈥? It should prove to be a quick challenge!
Question 1 of 6
Which form is used to state an obligation or duty someone has?

Origin of nonplus

First recorded in 1575鈥85; (noun) from Latin n艒n pl奴s literally, 鈥渘ot more, no further,鈥 that is, a state in which nothing more can be done

usage note for nonplus

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, 漏 Random House, Inc. 2022

How to use nonplus in a sentence

British Dictionary definitions for nonplus

/ (n蓲n藞pl蕦s) /

verb -plusses, -plussing or -plussed or US -pluses, -plusing or -plused
(tr) to put at a loss; confoundhe was nonplussed by the sudden announcement
noun plural -pluses
a state of utter perplexity prohibiting action or speech

Word Origin for nonplus

C16: from Latin n艒n pl奴s no further (that is, nothing further can be said or done)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition 漏 William Collins Sons & Co. Ltd. 1979, 1986 漏 HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012