De Rigueur
[adj] required by etiquette or usage or fashion; "instruction as to when and where a silk hat is de rigueur"
Related Information
Related Terms
accepted, acknowledged, admitted, approved, au fait, becoming, being done, binding, comme il faut, conformable, conventional, correct, customary, decent, decorous, done, formal, imperative, imperious, mandatory, meet, must, necessary, nice, obligatory, or