Non·plus v. t. [imp. & p. p. Nonplused or Nonplussed; p. pr. & vb. n. Nonplusing or Nonplussing.] To puzzle; to confound; to perplex; to cause to stop by embarrassment.
He has been nonplused by Mr. Dry's desiring him to tell what it was that he endeavored to prove. --Spectator.
Non·plus n. A state or condition which baffles reason or confounds judgment; insuperable difficulty; inability to proceed or decide; puzzle; quandary.
Both of them are a perfect nonplus and baffle to all human understanding. --South.
v : 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" [syn: perplex, vex, stick,
get, puzzle, mystify, baffle, beat, pose, bewilder,
flummox, stupefy, gravel, amaze, dumbfound]
[also: nonplussing, nonplusses, nonplussed]