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’
    • ‘The boys are nonplussed by his invasion into their lives, to say the least.’
    • ‘And coach Simon Jones was nonplussed by the record-breaking performance of the Australians.’
    • ‘Pip is nonplussed by how much they seem to hate him.’
    • ‘And Jones was nonplussed by the record-breaking performance of the Australians.’
    • ‘Similarly, a recent survey showed young Britons are nonplussed by German culture.’
    • ‘Many of those involved in the negotiations are nonplussed by the assertion that their efforts have ‘come to nothing’.’
    • ‘No doubt middle class people will be nonplussed by my compliance with the doctor's wishes.’
    • ‘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.’
    • ‘Hoggard looked tired and slightly nonplussed by events, which were both understandable reactions.’
    • ‘Or would the man be so nonplussed by her weird action that he would just pretend it hadn't happened?’
    • ‘She seemed nonplussed by that statement, and ignored it.’
    • ‘‘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.’
    • ‘The authorities, nonplussed by this silence, released the wife and reduced the accused son's sentence to banishment.’
    • ‘All of this is good news for Carlyle's family of investors, who seem nonplussed by the questions swirling around the firm.’
    • ‘Moreover, I am totally nonplussed by this statement.’
    • ‘The word clearly nonplussed the interviewer, who interrupted the discussion to demand a definition.’
    • ‘Alex walked out slowly, nonplussed by the lack of surprise at his arrival.’
    • ‘Nasa was nonplussed by the suggestion yesterday.’
    surprise, stun, dumbfound, confound, astound, astonish, amaze, take aback, disconcert, stop someone in their tracks, throw, catch off balance, throw off balance
    puzzle, perplex, baffle, mystify, confuse, bemuse, bewilder
    faze, flummox, floor, flabbergast, discombobulate, stump, bamboozle, fox
    View synonyms

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/