Accidental definition

ăksĭ-dĕntl
Occurring unexpectedly, unintentionally, or by chance.
adjective
3
0
(music) Of or relating to an accidental.
adjective
2
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An animal that has strayed beyond its normal range.
noun
1
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Any of various signs that indicate the alteration of a note by one or two semitones or the cancellation of a previous sign.
noun
1
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A note that has been marked with such a sign.
noun
1
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Happening by chance; fortuitous.
adjective
0
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Belonging but not essential; attributive; incidental.
adjective
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(music) Of an accidental.
adjective
0
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A nonessential quality or feature.
noun
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A sign, as a sharp, flat, or natural, placed before a note to show a change of pitch from that indicated by the key signature.
noun
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The tone indicated by such a sign.
noun
0
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Happening by chance, or unexpectedly; taking place not according to the usual course of things; casual; fortuitous.

An accidental visit.

adjective
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Nonessential; not necessary belonging; incidental.

Are accidental to a play.

adjective
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(music) Foreign to the key signature or a proper harmony.
adjective
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(geometry) Being a double point with two distinct tangent planes in 4-dimensional projective space.
adjective
0
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A property which is not essential; a nonessential; anything happening accidentally.
noun
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(painting, plural only) Those fortuitous effects produced by luminous rays falling on certain objects so that some parts stand forth in abnormal brightness and other parts are cast into a deep shadow.
noun
0
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(music) A sharp, flat, or natural, occurring not at the commencement of a piece of music as the signature, but before a particular note.
noun
0
0
Being an animal, especially a bird, that has strayed beyond its normal range.
adjective
0
1
A property, factor, or attribute that is not essential.
noun
0
1
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Other Word Forms

Noun

Singular:
accidental
Plural:
accidentals

Origin of accidental

  • Compare French accidentel, earlier accidental.

    From Wiktionary

  • accident +‎ -al

    From Wiktionary

  • First attested in 1386.

    From Wiktionary