NONPLUSSED

Someone who is nonplussed is so surprised and/or confused that they are unsure how to react.

The word derives from the Latin non (not) and plus (more) [1].

e.g. “The Canadian professor is only the third female recipient of the physics prize in its 118-year history, but she is nonplussed by the focus on her gender.”

[1] “nonplus” In The Concise Oxford Dictionary of English Etymology, edited by Hoad, T. F., Oxford University Press, 1996.

Photo credit: CollegeDegrees360 (Creative Commons)