nonplus

动词 nonplus:

1. be a mystery or bewildering to
   同义词：perplex, vex, stick, get, puzzle, mystify, baffle, beat, pose, bewilder, flummox, stupefy, gravel, amaze, dumbfound

1. The professor is never at a nonplus, and never perplexed by a problem.
   那位教授从来不会感到困惑，也不会被任何问题所难倒。
2. I was completely nonplussed by his sudden appearance.
   他突然出现使我大吃一惊。

non.plus

v.tr.（及物动词）
non.plused 也作 non.plussed non.plus.ing non.plus.sing non.plus.es non.plus.ses
To put at a loss as to what to think, say, or do; bewilder.
使迷惑：使不知所措，使不知如何想、说或做；使为难
n.（名词）
A state of perplexity, confusion, or bewilderment.
迷惑：困惑、迷惑或糊涂的状态

来源：
From Latin nôn plôs [no more]
源自 拉丁语 nôn plôs [不再]
nôn [not] * see non-
nôn [不] *参见 non-
plôs [more] * see pel…-
plôs [更多] *参见 pel…-