For some, Schnittke is an affecting musical mystic who defies categories.

Obama has said that his foreign-policy ideas defy traditional categories and ideologies.

It also had daytime discussions on strategies to market music that defies both radio formats and retail categories.

Many of the tactics also defy simple categories like official desertion.

Two of the most extraordinary bands defied categories and tore apart verse-chorus-verse forms.

Experimental galleries served up fresh names that defied easy categories.

Some of her reasons for holding off defy conventional categories.

The situation defied neat categories, since many people constantly changed sides.

To begin with, this pope defies familiar categories.

Lyle Lovett is someone who defies categories, and does it well.