Definition of nonplus in English:

nonplus

verb

[WITH OBJECT]
  • Surprise and confuse (someone) so much that they are unsure how to react.

    ‘Diane was nonplussed by such an odd question’
    • ‘Moreover, I am totally nonplussed by this statement.’
    • ‘Nasa was nonplussed by the suggestion yesterday.’
    • ‘Many of those involved in the negotiations are nonplussed by the assertion that their efforts have ‘come to nothing’.’
    • ‘The chair of the committee and my colleagues were nonplussed by the protest and several went to the open but draped windows to watch the street theatre.’
    • ‘She seemed nonplussed by that statement, and ignored it.’
    • ‘All of this is good news for Carlyle's family of investors, who seem nonplussed by the questions swirling around the firm.’
    • ‘The boys are nonplussed by his invasion into their lives, to say the least.’
    • ‘‘Lauding,’ as Gates calls such devastating word games, confuses Wole, who, at this point of his development, is ignorant of the nature of language performance intended to nonplus the audience.’
    • ‘Or would the man be so nonplussed by her weird action that he would just pretend it hadn't happened?’
    • ‘Similarly, a recent survey showed young Britons are nonplussed by German culture.’
    • ‘Alex walked out slowly, nonplussed by the lack of surprise at his arrival.’
    • ‘And coach Simon Jones was nonplussed by the record-breaking performance of the Australians.’
    • ‘No doubt middle class people will be nonplussed by my compliance with the doctor's wishes.’
    • ‘The word clearly nonplussed the interviewer, who interrupted the discussion to demand a definition.’
    • ‘Hoggard looked tired and slightly nonplussed by events, which were both understandable reactions.’
    • ‘Pip is nonplussed by how much they seem to hate him.’
    • ‘And Jones was nonplussed by the record-breaking performance of the Australians.’
    • ‘The authorities, nonplussed by this silence, released the wife and reduced the accused son's sentence to banishment.’
    surprise, stun, dumbfound, confound, astound, astonish, amaze, take aback, disconcert, stop someone in their tracks, throw, catch off balance, throw off balance
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noun

  • A state of being very surprised and confused.

    ‘reduced to a perfect nonplus, he rose from his chair’

Origin

Late 16th century: from Latin non plus ‘not more’. The noun originally meant ‘a state in which no more can be said or done’.

Pronunciation

nonplus

/nɒnˈplʌs/