non plus, is it negative or positive? I am confused!
non-pluss think that you are not able to plus( do addition as in maths) thus not being able to perform a simple mathematical calculation will bewilder you!
It is a plus to know what to do - and bewildering to be non-plussed
He donâ€™t know how to plus 9 + 9. So he is nonplussed.