Meaning of accidental

ac•ci•den•tal

Pronunciation: (ak"si-den'tl), [key]
— adj.
  1. happening by chance or accident; not planned; unexpected: an accidental meeting.
  2. nonessential; incidental; subsidiary: accidental benefits.
  3. relating to or indicating sharps, flats, or naturals.
—n.
  1. a nonessential or subsidiary circumstance, characteristic, or feature.
  2. a sign placed before a note indicating a chromatic alteration of its pitch.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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