[1] : The Collaborative International Dictionary of English v.0.48

nonplus \non"plus\, n. l. non not + plus more, further. see
   plural.
   a state or condition which baffles reason or confounds
   judgment; insuperable difficulty; inability to proceed or
   decide; puzzle; quandary.
   1913 webster

         both of them are a perfect nonplus and baffle to all
         human understanding.                     --south.
   1913 webster
see also:
plural 

[2] : The Collaborative International Dictionary of English v.0.48

nonplus \non"plus`\, v. t. imp.  p. p. nonplusedor
   nonplussed; p. pr.  vb. n. nonplusing or nonplussing.
   to puzzle; to confound; to perplex; to cause to stop by
   embarrassment.
   1913 webster

         he has been nonplused by mr. dry's desiring him to tell
         what it was that he endeavored to prove. --spectator.
   1913 webster
see also:
nonplused nonplussed nonplusing nonplussing 

[3] : WordNet (r) 2.0

nonplus
     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
see also:
perplex vex stick get puzzle mystify 
baffle beat pose bewilder flummox 
stupefy gravel amaze dumbfound nonplussing 
nonplusses nonplussed 

[4] : Moby Thesaurus II by Grady Ward, 1.0

150 moby thesaurus words for "nonplus":
   gordian knot, abecedarian, addle, amaze, answer,
   answer conclusively, argue down, astonish, astound, baffle,
   bafflement, balk, bamboozle, beat, bewilderment, blast, boggle,
   bother, brave, bring up short, buffalo, challenge, check,
   checkmate, circumvent, confound, confoundment, confront, confuse,
   confusion, confute, contradict, contravene, controvert, counter,
   counteract, countermand, counterwork, cross, crush, crux, dabbler,
   dash, daze, defeat, defy, demolish, deny, destroy, dilemma,
   dilettante, discomfit, discomposure, disconcert, disconcertedness,
   disconcertion, disconcertment, discountenance, dish, dismay,
   dismiss, dispose of, disrupt, disturbance, dumbfound, elude,
   embarrassment, enigma, faze, finish, fix, floor, flummox, flurry,
   fluster, foil, frustrate, fuddle, get, jam, keep in suspense,
   knock the chocks, knot, knotty point, lick, maze, muddle, mystery,
   mystify, node, nodus, nonprofessional, overcome, overthrow,
   overturn, overwhelm, oxymoron, paradox, paralyze, parry, perplex,
   perplexity, perturbation, pickle, plight, pons asinorum, poser,
   pother, predicament, problem, put to silence, puzzle, puzzlement,
   quandary, rattle, rebut, reduce to silence, refute, riddle, ruin,
   sabotage, scotch, scrape, settle, shock, shut up, silence,
   smash all opposition, smatterer, spike, spoil, squash, squelch,
   stew, stick, stonewall, stop, stump, stun, stymie, subvert,
   take aback, teaser, throw, thwart, tyro, unassuredness, undermine,
   upset, vexed question

Nonplus >> N Words
Nonplus, definition of term: Nonplus
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