nonplus

American  

[non-pluhs] / nɒnˈplʌs /

verb (used with object)

nonplussed, nonplused, nonplussing, nonplusing

1. to render utterly perplexed by something unexpected; puzzle completely.

   He nonplussed his questioners by answering in riddles.

   Synonyms:

   disconcert, confound, confuse, perplex

2. to cause to feel indifferent, calm, or unexcited.

   The shoppers were entirely nonplussed by the disturbance in the street, continuing to gaze at window displays as they strolled along.

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noun

1. a state of utter perplexity.

   When the protagonist's wife suddenly disappears, he's at a nonplus and fights with two different feelings.

nonplus British  

/ nɒnˈplʌs /

verb

1. (tr) to put at a loss; confound

   he was nonplussed by the sudden announcement

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noun

1. a state of utter perplexity prohibiting action or speech

Usage

See nonplussed ( def. ).

Etymology

Origin of nonplus

First recorded in 1575–85; (noun) from Latin nōn plūs literally, “not more, no further,” that is, a state in which nothing more can be done

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Explanation

To nonplus is to baffle or confuse someone to the point that they have nothing to say. Something weird and mysterious can nonplus you, like a play that is performed entirely by chickens. If you know a little French or Latin, you'll recognize that "non plus" means "no more." When something bewildering nonpluses you, there's no more you can say or do about it. A goal of getting poor grades, running with a bad crowd, and refusing to eat would leave your parents nonplussed. Sometimes people misuse nonplus to mean "unimpressed," but that's not correct: to nonplus is to puzzle, confuse, and dumbfound.

Example Sentences

See Examples For:

nonplus nonplused nonplussed nonplussing

He found cross-examinations mentally invigorating, soon learned that he could nonplus storming attorneys if he kept smiling no matter how galling their insinuations.

From Time Magazine Archive

Each desperate plunge elicited from the sufferers oaths and expressions which only those who have seen sailors completely at a nonplus on shore can conceive.

From Journals of Two Expeditions of Discovery in North-West and Western Australia, Volume 1 by George Grey

Here was a nonplus, not without its comical side.

From Chivalry by James Branch Cabell

He wanted to nonplus and disconcert her, if such a thing were possible.

From The Dark House by I. A. R. (Ida Alexa Ross) Wylie

Here was a nonplus, not perhaps without its comical side.

From Chivalry by Elizabeth Shippen Green Elliott

When was the last time you looked at the exquisite list of synonyms for the word “baffled”? They may be among the best in the English language: puzzled, nonplused, discombobulated, flummoxed, stumped, fogged, wildered, buffaloed.

From New York Times ● Feb. 29, 2024

He isn’t nodding his head or pumping his fist or rapping the lyrics like no few of the V.I.P.s present; in fact he seems almost nonplused.

From New York Times ● Dec. 27, 2022

The columnist Herb Caen, nonplused, invented the term “Beatnik” in 1958, which made the Beats sound like something you’d want to flick off, like fleas.

From New York Times ● Mar. 11, 2019

And this, in turn, has left some of his peers nonplused — grumbling at what they see as a flimsy theory or bewildered as to why Harvard’s top astronomer won’t shut up about aliens.

From Washington Post ● Feb. 4, 2019

“I sure could use some lumber for my front porch,” he said, nonplused.

From "October Sky" by Homer Hickam

As his comments become more inflammatory, the film cuts to the increasingly nonplussed reactions of Palantine and an aide, who have realized their driver is unwell.

From The Wall Street Journal ● Feb. 6, 2026

In a brief phone interview, a worker at Unique Bite Eatery in Indio appeared nonplussed and said there was no damage at the restaurant.

From Los Angeles Times ● Jan. 19, 2026

Durant appeared nonplussed by the spat, while admitting that he had deliberately taken a combative approach into the game.

From Barron's ● Dec. 21, 2025

But Rotem Naftalovich, of Rutgers University in New Jersey, one of the three researchers involved, said the US food regulator was nonplussed by the admittedly "wonky" idea.

From BBC ● Sep. 19, 2025

Perplexed, Harry looked to Hermione for help, but she shook her head, apparently as nonplussed as he was.

From "Harry Potter and the Deathly Hallows" by J.K. Rowling

Weaver, however, verged on nonplussing co-hosts Brian Williams and Rachel Maddow, as well as reporter Steve Kornacki, MSNBC's millennial version of CNN's king-of-the-"Magic Wall" John King.

From US News ● Apr. 20, 2016

The question was awkward, nonplussing Jerky, and, the second time, calling for explanation from his sister; who, however, promptly vouchsafed it.

From No Quarter! by Mayne Reid

Dismissing this nonplussing phase, I turned to the subject of the gem once more.

From The Paternoster Ruby by Charles Edmonds Walk

Our higher officials are fond as a rule of nonplussing their subordinates; the methods to which they have recourse to attain that end are rather various.

From Fathers and Children by Ivan Sergeevich Turgenev

He received visitors with the graciousness of the courteous head of a department, who resigns himself to listen to demands, allowing them to talk as he smiled faintly, and nonplussing them by his calmness.

From Une Vie, a Piece of String and Other Stories by Guy de Maupassant

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Related Words

• astonish
• astound
• baffle
• bewilder
• daze
• disconcert
• dumbfound
• faze
• fluster
• mystify

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