- 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
SynonymsSee more synonyms for nonplus on Thesaurus.com
1. perplex, confuse, confound, disconcert.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for nonplused
He had expected to intimidate our hero easily, and now he was nonplused.The Young Oarsmen of Lakeview
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
- (tr) to put at a loss; confoundhe was nonplussed by the sudden announcement
- a state of utter perplexity prohibiting action or speech
C16: from Latin nōn plūs no further (that is, nothing further can be said or done)
Word Origin and History for nonplused
Online Etymology Dictionary, © 2010 Douglas Harper