• Accidental (music)
  Accidental (music)
  In music, an accidental is a note whose pitch is not a member of a scale or mode indicated by the most recently applied key signature. In musical notation, the symbols used to mark such notes, sharps , flats , and naturals , may also be called accidentals...
  
  
• Accidental (album)
  Accidental (album)
  Accidental is a studio album by English guitarist, composer and improvisor Fred Frith. It is the third of a series of Music for Dance albums Frith made, and was recorded between December 1995 and January 1996 at Studio Jankowski in Stuttgart, Germany...
  
  , by Fred Frith
• Accidental (biology), a biological phenomenon more commonly known as vagrancy
• Accidental property, a philosophical term

See also

• Accident
  Accident
  An accident or mishap is an unforeseen and unplanned event or circumstance, often with lack of intention or necessity. It implies a generally negative outcome which may have been avoided or prevented had circumstances leading up to the accident been recognized, and acted upon, prior to its...
  
  
• Adventitious
  Adventitious
  Adventitious has various meanings in various disciplines and in general usage.Adventitious is from the Latin root advenire, meaning "to come or be superadded" and in correct English the meanings tend to have connections to accidental or casual occurrence...
  
  , which is closely related to Accidental property, and Accidental (biology)
• Random, which often is used incorrectly where accidental or adventitious would be appropriate.