IPA: //nɒnˈplʌs//
KK: /nɑnˈplʌs/
A situation where someone is confused or unsure about what to do next.
When he heard the unexpected news, he was in a state of nonplus.
To confuse someone so much that they do not know how to respond or what to do.
The unexpected question nonplussed her, leaving her speechless for a moment.
Past: nonplussed
Past Participle: nonplussed
Nonplus → It is formed from "non-" (meaning not) and "plus" (from Latin "plus", meaning more). The word describes a state of being so perplexed that one cannot respond or act, essentially meaning not more or unable to proceed due to confusion.
Think of being in a situation where you are 'not' ('non-') able to do 'more' ('plus') because you are so confused. This helps you remember that 'nonplus' means to be perplexed or bewildered.
No commonly confused words.