Origin: 1500-1600 nonplus state of confusion (16-19 centuries), from Latin non plus no more
Thesaurus
THESAURUShaving the feeling you get when something unusual or unexpected happens►surprised
having the feeling you get when something unusual or unexpected happens: I was so surprised when I saw you walk in! I wouldn’t be surprised if Jacobs won the tournament (=I think it is likely this will happen).
►amazed
very surprised, especially because something is very unusual: I was amazed at how big the house is.
►astonished
very amazed: They were astonished to learn that the painting had been done by a child.
►astounded
extremely surprised by something that is difficult to believe: I was astounded at how bad the play was.
►shocked
very surprised and upset because of something bad that has happened: We were all shocked by the news of her sudden death.
►flabbergasted
very surprised and confused or angry because of something bad that has happened: I was flabbergasted that she would borrow my car without asking.
►stunned
too surprised and shocked to know what to do or say: She was stunned that Ed would be so rude to his mother.
►taken aback
surprised and not sure what to say or do: At first she was taken aback, but then she laughed.
►dumbfounded
formal too surprised and confused to speak: I stood there, dumbfounded, when she told me she was pregnant.
►nonplussed
formal so surprised that you do not know what to say or do: The unexpected announcement of layoffs left employees nonplussed.
►startled
surprised because you suddenly hear or see someone or something: The startled rabbit ran off into the bushes.
so surprised that you do not know what to say or do: She looked completely nonplussed.► see thesaurus at surprised