Definitions for "Nonplus"
A state or condition which baffles reason or confounds judgment; insuperable difficulty; inability to proceed or decide; puzzle; quandary.
To puzzle; to confound; to perplex; to cause to stop by embarrassment.
to confuse or perplex; to metagrobolize
be a mystery or bewildering to; "This beats me!"; "Got me--I don't know the answer!"; "a vexing problem"; "This question really stuck me"