Meaning of ACCIDENTAL in English

ACCIDENTAL

■ adjective

1》 happening by accident.

2》 incidental.

3》 Philosophy relating to or denoting properties not essential to a thing's nature.

■ noun

1》 Music a sign indicating a momentary departure from the key signature by raising or lowering a note.

2》 Ornithology another term for vagrant .

Derivatives

~ly adverb

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.