Как по Английски будет accidental

adjective

Involving or causing sudden great damage or suffering.

Примеры использования:

A catastrophic earthquake

adjective

Lacking any obvious principle of organization.

Примеры использования:

The music business works in a haphazard fashion

adjective

Happening as a minor accompaniment to something else.

Примеры использования:

For the fieldworker who deals with real problems, paperwork is incidental

noun

An incidental expense, event, etc.

Примеры использования:

An allowance to cover meals, taxis, and other incidentals

adjective

Happening by chance, unintentionally, or unexpectedly.

Примеры использования:

A verdict of accidental death

noun

A sign indicating a momentary departure from the key signature by raising or lowering a note.

Примеры использования:

Horn parts are usually written without key signature, the necessary accidentals being added

Happening by chance or unexpectedly or unintentionally

adjective

Characterized by accidental or non-essential qualities.