Nonplus - definition of nonplus by The Free Dictionary
Define nonplus. nonplus synonyms, nonplus pronunciation, nonplus translation, English dictionary definition of nonplus. tr.v. non·plussed , non·plus·sing , non·plus·ses also non·plused or non·plus·ing or non·plus·es 1. To put at a loss as to what to think, say, or do;...
Source: tfd.com