classical music. In technical musical usage this means music composed during the late eighteenth and early nineteenth centuries, characterized by the development of the sonata by such composers as Mozart. In popular use, however, the term is used to mean any serious art music as distinct from jazz, pop, or folk.
The definition of vague is something unclear, hazy or uncertain. An example of vague would be directions to a house that don't include street names. YourDictionary definition and usage example.
1  Vagueness arises from the use of terms that are inherently vague. 2  The cabinet minister who says, My officials are monitoring this situation very closely, and I can promise that we shall take all appropriate measures to ensure that the situation is resolved in a way that is fair to all the parties involved. Vagueness in Sentences and Words.  2 The primary application of 'vague' is to sentences, not to words. 3  But the vagueness of a sentence does not imply that vagueness of every constituent word.