• a musical notation that makes a note sharp or flat or natural although that is not part of the key signature
• without intention (especially resulting from heedless action); "with an inadvertent gesture she swept the vase off the table"; "Accidental poisoning"; "an Accidental shooting"
• associated by chance and not an integral part; "poetry is something to which words are the Accidental, not by any means the essential form"- Frederick W. Robertson; "they had to decide whether his misconduct was adventitious or the result of a flaw in his
• occurring or appearing or singled out by chance; "their Accidental meeting led to a renewal of their friendship"; "seek help from casual passers-by"; "a casual meeting"; "a chance occurrence"

'Accidental' in other languages