Dictionary definition · accidental
noun
- a musical notation that makes a note sharp or flat or natural although that is not part of the key signature
adjective
- happening by chance or unexpectedly or unintentionally"with an inadvertent gesture she swept the vase off the table"
- not of prime or central importance"nonessential to the integral meanings of poetry"
Similar words
Source: Open English WordNet (CC BY 4.0).